Why (round-5 review, unsupportedpastels M1; Adolanium cost note):
- M1: code outside any unit is not a unit, so its hits could survive only through the line
diff of a file against its own base (or git-detected rename). Moving an unchanged
module-level `try/except Exception: pass` into pkg/a_compat.py reported S110 + BLE001 as new
(exit 1). Now a base occurrence whose line LEFT its file may pay, once, for an identical
occurrence (same rule, same normalized code) arriving in another file in the same diff, at
module level or inside the unit its own unit was matched to. One-to-one: the spent
occurrence no longer counts as credit at its origin. A copy (origin line survives) still
blocks; two arrivals for one departure block; a re-add in the same file stays new; a
module-level hit never pays for one inside a function.
- Adolanium §3: SequenceMatcher ran for every changed file, TS included (1.66 s on desktop
main.ts for a one-line change); line matching is now skipped when neither side has hits.
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