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Levi Neuwirth 9110f9f32c fix(window): keep pmacs.window.buffer() infallible with no argument 
PR #155 review round 2, self-review of the round-2 commit.

The round-2 change labelled "minor" — resolving both arms of
pmacs.window.buffer() through the acting frontend for uniformity — made
the NO-ARGUMENT arm fallible. `acting_frontend` follows the interactive
origin, which can name a frontend that has no registered view: a bare
`dispatch_key` from an unattached peer does exactly that. `selected_window`
then raises "acting frontend has no layout" instead of answering.

Nothing surfaced that error, because the runtime callers do not pcall it.
killring, syntax, autosave, pair, indent and comment all read
pmacs.window.buffer() on ordinary edits, so the raise silently dropped
the operation: kill_ring_acceptance went 30/30 to 25/5, with
frontend_detached_drops_per_frontend_state reporting only "B has kill
state". main is 30/30, and reverting this one file restored it.

The no-arg arm is back on ambient active_buffer_id() and now documents
why that is deliberate rather than an oversight: dispatch sets
active_frontend to the acting frontend before running a command, so the
two agree on every real path, while only the ambient resolver has the
fallback that makes it total. The explicit-window arm keeps its Q#BP11
layout validation, which is what the arc actually needed.

acc19c pins it through the real path — a buffer.after-edit subscriber
reading pmacs.window.buffer() during a viewless peer's dispatch_key —
rather than by calling the binding directly. Bite-verified:
scripts/bite bbe4152 src/lua_bindings/mod.rs --test
bottom_panel_stage1_acceptance -- acc19c goes red with the exact
"acting frontend has no layout" traceback.

The ledger also records two gating facts found on the way: the workspace
sweep must run with an isolated XDG_CONFIG_HOME, because the real user
init.lua installs a local package and the losing race leaks a status
message into painted-frame comparisons; and a latent pre-existing main
bug in the buffer CRDT undo path, which is not this branch's and whose
proptest seed is deliberately not committed here.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012j4omtTMn9v1UfmHQb9ap6
 		2026-07-24 20:05:51 -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
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
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
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
listview_acceptance.rs feat(panels): listview module, Q#P6 round-trip seam, references panel 2026-07-07 20:15:46 -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
theme_faces_acceptance.rs fix(vterm): harden integrated Stage 2 behavior 2026-07-21 21:38:08 -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(ci): diagnose the vterm PTY flake; drop the macOS outline budget 2026-07-24 10:34:36 -04:00
vterm_stage3_acceptance.rs feat(window): window parameters, fixed extents, and the display policy 2026-07-24 13:53:14 -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