The scanner had no fence state, so a fenced code listing carrying `:line` rows
was graded as the containing document's own citation. checkin_check.py and
queue_index.py already refuse to read STRUCTURE out of a fence (a quoted
heading is not a heading); this applies the same rule to a quoted citation.
Measured before the fix, over the whole corpus at a2d9bc0 (345 .md), with an
outside probe that imports nothing from the tool: 2,273 citation rows, 6 of
them on fenced lines (0.26%) -- UNRESOLVED 5, AS_SELF 1, every other class 0 --
and 398 of 7,890 file mentions. The class is real and bounded, which is what
licenses a six-row change.
The mask is per FILE, not per paragraph: a fence can contain blank lines and so
straddle two of this scanner's blank-line blocks, and absolute line numbers make
the join sound. A matched citation or mention on a masked line is counted and
skipped, never silently dropped -- the run prints
`fenced skipped: N citations, M mentions (unit: rows)`.
Same corpus, same revision, pre-fix build vs post-fix build (witness:
/root/.hermes/wizard-outputs/volt/2026-10-19-fence-cites/verify_fix.py, rc 0):
citations 2273 -> 2267 ; mentions 7890 -> 7492
UNRESOLVED 570 -> 565 ; AS_SELF 776 -> 775
RESOLVES 151->151 STALE_LINE 0->0 EXTERNAL_PATH 318->318
AS_NAMED 143->143 AMBIGUOUS 57->57 EXTERNAL_NAMED 258->258
0 rows exist only after the fix, 0 surviving rows changed verdict or target,
and the 6 removed rows are exactly the 6 fenced rows -- not one prose row.
Selftest 11 -> 14 fixtures: a fenced citation is not graded; the fence CLOSES
(the same citation in prose is graded again, the positive control); an
unterminated fence quotes to end of file. doc_census on this tool: 22 claims,
0 INTERNAL SPLIT, 0 STALE, rc 0. verify.py 3/3 legs rc 0.
timmy
efe7ec60d7