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Levi Neuwirth f3103a6953 fix(lean4): defer the expansion past the chain, and guard its point 
Three defects, all about what happens AROUND the expansion rather than
about resolving an abbreviation.

A pair character that TERMINATES an abbreviation never reached
auto-pairing: `\alp(` gave `α(`. Q#LN22 already said the terminator is
not claimed and the implementation claimed it whenever an expansion
succeeded. Merely declining is not enough either — the chain hands each
consumer a copy of the record made before any consumer ran, so
expanding inside the chain invalidates the copy pairing is holding and
the closer is silently lost. Verified by mutation rather than assumed:
expand-then-decline reproduces `α(` exactly.

The expansion therefore runs on its OWN `buffer.after-edit` subscriber,
registered after typed_edit.lua's and before lsp.lua's. A claim stops
the chain but not a separate subscriber, which is the point: pairing
claims the terminator it reacts to. The replaced span now covers only
the leader and the typed text, so pairing's closer lands outside it and
survives. One undo restores the same text either way, because the
terminator was always its own insert.

That second subscriber is a new instance of Q#AP7 — lsp.lua flushes
didChange synchronously on the signature-trigger path, and `(` is a
trigger — so acceptance 45m pins it with the sighelp fake server: no
didChange may ever carry the unexpanded text.

The relevance check is now three-part, as pairing's has been since
#110: buffer, window, AND `ed.cursor() == rec.post_cursor`. A redefined
self-insert can insert the completing character and then move the
point, and expanding over a span the user has left teleports them back
into it.

Cursor placement after the replace is context-guarded, as
`repair_cursor` is. A buffer intercept may switch buffers while
`buf:replace` runs; the unguarded `goto_byte` then translated the Lean
buffer's pre-edit point through the Lean buffer's edit and applied it
to whatever was ambient.

Q#LN22, criterion 38's span wording, and the ledger are corrected to
describe the deferred design rather than the one that shipped — the
rationale's source, not only the sites quoting it. Acceptance 45j/45k/
45l/45m added; framing rev 10.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011LFvC4FQtux4y32KuevZ7B
 		2026-07-26 16:47:54 -04:00
..
common feat(vterm): protocol v19 terminal frames and a native GPU terminal 2026-07-22 13:28:35 -04:00
fixtures V0.2-prerequisite pull-forward + M10.11 clean audit round 2026-05-18 10:31:31 -04:00
acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
auto_indent_acceptance.rs fix(edit): PR #109 round 1 — shared search invalidation, daemon anchor clear, bounded indent scan 2026-07-10 15:46:36 -04:00
auto_indent_crdt_acceptance.rs feat(edit): auto-indent on newline (Arc 2) 2026-07-10 12:11:05 -04:00
auto_pair_acceptance.rs test(edit): PR #110 round 3 — pin raw-byte predicate posture and top-level sets guard 2026-07-12 16:20:01 +01:00
auto_pair_crdt_acceptance.rs feat(edit): auto-pairing (Arc 2) 2026-07-11 17:11:56 +01:00
autosave_acceptance.rs fix(persistence): adopt clears the old owner's skip cache; failing sweeps are loud 2026-07-09 12:06:49 -04:00
bottom_panel_stage1_acceptance.rs fix(window): keep pmacs.window.buffer() infallible with no argument 2026-07-24 20:05:51 -04:00
bottom_panel_stage2a_acceptance.rs fix(panel): close Stage 2A review round 3 (2 P1) 2026-07-26 13:18:05 -04:00
comment_toggle_acceptance.rs feat(edit): comment/uncomment toggle on M-; (Arc 2) 2026-07-09 22:56:44 -04:00
compile_mode_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
compile_mode_crdt_acceptance.rs fix(compile): PR #113 round 4 — column-counted CR rewrites, alt-screen style resync 2026-07-13 17:55:08 +01:00
completion_popup_acceptance.rs fix(lsp): range-only providers, completion-accept boundary, exact codepoint classify 2026-07-09 20:48:08 -04:00
config_registry_acceptance.rs fix(config): reject wrongly-typed spec fields; make trim-on-save buffer-aware 2026-07-21 18:29:18 -04:00
cua_region_acceptance.rs CUA type-over is a single undo step (Q#U1) 2026-06-15 20:00:53 -04:00
desktop_acceptance.rs fix(persistence): reliable daemon gate, unarm, per-pane after-load 2026-07-08 22:27:24 -04:00
dired_acceptance.rs fix(dired): address PR #165 review round 1 2026-07-25 15:21:26 -04:00
editops_acceptance.rs fix(edit): PR #111 round 1 — scalar-valid UTF-8, per-word capitalize, trim error reporting 2026-07-12 16:34:18 +01:00
find_file_acceptance.rs fix(find-file): review round 1 -- name the real test, pin two gaps 2026-07-25 11:33:46 -04:00
folding_acceptance.rs test(fold): address PR #142 review round 2 — pin the round-1 wiring 2026-07-23 14:25:28 -04:00
folding_stage2_acceptance.rs feat(window): window parameters, fixed extents, and the display policy 2026-07-24 13:53:14 -04:00
gpu_font_acceptance.rs test(font): wire acceptance suite + protocol/design docs (items 2-8, 15) 2026-07-18 11:46:44 +01:00
gpu_initial_target_acceptance.rs Implement session-scoped GPU initial targets 2026-07-23 19:03:25 -04:00
gpu_invocation_acceptance.rs fix(daemon): contain failed target sessions 2026-07-24 10:10:31 -04:00
injection_acceptance.rs fix(injections): PR #122 round 2 — sibling precedence, observable cap, docs 2026-07-15 12:07:21 +01:00
kill_ring_acceptance.rs fix(edit): exact effective-edit verification for kill/yank-pop 2026-07-09 20:40:48 -04:00
lean4_server_acceptance.rs fix(lsp): close round-six Lean fallback gaps 2026-07-25 22:32:48 -04:00
lean4_stage1_acceptance.rs feat(lean): the Lean 4 language server (Arc 8 Stage 3b) 2026-07-25 17:40:02 -04:00
lean_input_acceptance.rs fix(lean4): defer the expansion past the chain, and guard its point 2026-07-26 16:47:54 -04:00
listview_acceptance.rs feat(panels): listview module, Q#P6 round-trip seam, references panel 2026-07-07 20:15:46 -04:00
lsp_dispatch_seams_acceptance.rs test(lsp): gate the non-UTF-8 fixture on linux, not merely unix 2026-07-25 17:03:10 -04:00
lsp_multi_root_acceptance.rs fix(lsp): attribute a failing root resolver (COHERENCE §1.2) 2026-07-25 14:24:59 -04:00
m3_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m4_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
m5_5_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m5_6_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m5_7_acceptance.rs CI fixes 2026-05-18 12:24:35 -04:00
m5_8_acceptance.rs tests: widen backoff timing signal 2026-05-25 13:32:54 -04:00
m5_perf_acceptance.rs M11.1: semantic-frontend protocol scaffolding (wire + capability) 2026-05-18 19:39:07 -04:00
m6_4_repl_acceptance.rs Fix PTY final-output drain race 2026-05-04 09:44:30 -04:00
m6_5_repl_acceptance.rs tests: quarantine macOS PTY marker cases 2026-05-25 13:02:46 -04:00
m6_7_scrollback_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m6_8_multi_repl_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m6_perf_acceptance.rs tests: tune M6 hosted perf profile 2026-05-25 13:43:28 -04:00
m7_3_acceptance.rs Fix CI and Documentation issues 2026-05-04 10:19:19 -04:00
m7_5_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_6_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_7_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_8_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_9_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_10_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_11_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_review_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_1_acceptance.rs Pin toolchain to 1.95.0 + mechanical clippy/rustc fixes 2026-05-18 11:38:57 -04:00
m8_1c_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_1d_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_2_acceptance.rs tests: stabilize hosted perf gates 2026-05-25 13:20:18 -04:00
m8_3_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_5_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_6_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_7_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_9_acceptance.rs test(ci): diagnose the vterm PTY flake; drop the macOS outline budget 2026-07-24 10:34:36 -04:00
m8_10_acceptance.rs V0.2-prerequisite pull-forward + M10.11 clean audit round 2026-05-18 10:31:31 -04:00
m9_1_acceptance.rs T M4.5 async bridge: LSP requests settle async-runtime jobs 2026-05-18 19:36:17 -04:00
m9_2_acceptance.rs style: from_secs(1) for the m9_2 harvest wait (clippy duration units) 2026-06-10 12:07:08 -04:00
m9_3_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m9_4_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_5_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_6_acceptance.rs fix(vterm): harden view anchors and interactive authority 2026-07-22 09:09:44 -04:00
m9_7_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_8_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m10_2_perf.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_10_perf.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_10_postcard_unknown_variant.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_11_acceptance.rs M11.1: semantic-frontend protocol scaffolding (wire + capability) 2026-05-18 19:39:07 -04:00
m10_11_perf.rs M10.11: adversarial two-laptop acceptance + jitter; the M10 arc verified 2026-05-15 20:51:00 -04:00
m11_5_semantic_acceptance.rs Implement session-scoped GPU initial targets 2026-07-23 19:03:25 -04:00
mode_system_wiring_acceptance.rs test: preserve mode segments with long paths 2026-07-22 08:28:57 -04:00
overlay_reattach_acceptance.rs fix(panels): follow active buffer on semantic frontends; re-attach overlays on switch 2026-07-07 20:46:50 -04:00
persistence_acceptance.rs fix(persistence): symlink confinement, real test-inertness, view_top restore 2026-07-08 18:21:46 -04:00
query_replace_acceptance.rs fix(query-replace): pin the session to its origin buffer (wrong-buffer guard) 2026-07-08 17:07:08 -04:00
save_clobber_guard_acceptance.rs fix(save): refuse to silently clobber a file changed on disk 2026-07-09 14:12:45 -04:00
statusline_segments_acceptance.rs feat(window): window parameters, fixed extents, and the display policy 2026-07-24 13:53:14 -04:00
tab_width_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
terminal_config_acceptance.rs fix(terminal): close review round 1 on Stage 1 2026-07-25 21:47:37 -04:00
terminal_copy_mode_acceptance.rs docs(terminal): restate criterion 17's bite for the fixed substrate 2026-07-26 14:38:22 -04:00
theme_faces_acceptance.rs fix(vterm): harden integrated Stage 2 behavior 2026-07-21 21:38:08 -04:00
typed_edit_chain_acceptance.rs fix(typed-edit): close round-8 review on the consumer chain 2026-07-26 13:39:33 -04:00
vterm_stage1_acceptance.rs fix(vterm): harden integrated Stage 2 behavior 2026-07-21 21:38:08 -04:00
vterm_stage2_acceptance.rs test(vterm): gate terminal readiness on a file, not on host bytes 2026-07-24 14:27:21 -04:00
vterm_stage3_acceptance.rs fix(daemon): stop resizing a semantic frontend's PTY twice per tick 2026-07-25 15:22:04 -04:00
worker_shutdown_acceptance.rs fix(completion): address TUI-validation findings (LSP query gaps, scoping, prefix keys, window scope) 2026-07-07 16:54:14 -04:00