The baseline for inheritance was the raw previous document, which for a
legacy space carries no wall catalogue at all — so every inherited short
segment of a real plan looked new and the resize smoke's legitimate write was
refused (executed: two 5 cm segments against their own 30 cm thickness).
Both sides now cross commitWallSegmentModel first, and inheritance is counted
per rule rather than per subject, because a structural write re-keys the
carriers it re-atomises.
Issue: #329
User-Visible: no
Codex
4758767e0c