Deleting `middle_click_paste_source` left a broken intra-doc link on
`apply_middle_press` and a stale name in the end-to-end row's comment.
Both now name `paste_source_for`, which is what the code calls.
And `an_unused_button_produces_no_effect_of_any_kind`'s opening sentence
was duplicated on one line --- the tail of the same insertion that split
it in the first place. Repaired.
WHY NEITHER WAS CAUGHT, which is the part worth keeping: NOTHING RUNS
`cargo doc`. It is absent from `scripts/gate` and from every ci.yml job,
so broken intra-doc links are ungated across this repository. `git diff
--check` cannot see them because they are syntactically valid, and
clippy does not read doc links. Running it by hand here confirms my link
now resolves --- and surfaces one PRE-EXISTING unresolved link,
`MathNode` at pmacs-gpu/src/math_layout.rs:314, in a file this lane has
never touched.
I have not added a doc step to the gate: that is shared infrastructure
and its own lane, alongside the clippy default-features gap this lane
already recorded. The finding is carried to 1b's ledger block rather
than left in a commit message.