WordStatisticsTag.parse used has(3) but the tag has only 3 elements
(indices 0-2), so the guard never passed and parse always returned null
— silently breaking all Chapter and Chunk event parsing. Correct to
has(2).
Also replace unsafe tag[n].toInt() with toIntOrNull() in WordStatisticsTag
and IndexTag so a malformed numeric field from a relay returns null
instead of throwing NumberFormatException up through the parse loop.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
c45a310641