Tom Boucher e03a9edd44 fix: replace invalid \Z regex anchor and remove redundant pattern ...

The original PR (#1337) used \Z in a JavaScript regex, which is a
Perl/Python/Ruby anchor — JavaScript interprets it as a literal match
for the character 'Z', silently truncating expected text containing
that letter. Replace with a two-pass approach: try next-key lookahead
first, fall back to greedy match to end-of-string.

Also remove the redundant `to=all:` pattern in sanitizeForDisplay()
since it is a subset of the existing `to=[^:\s]+:` pattern.

Add regression tests proving the Z-truncation bug and verifying
expected blocks at end-of-section parse correctly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-23 22:19:49 -04:00

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