The emitter wrote block-map keys raw while only values went through
quoting. A workspace-hash key segment that happens to be all digits
with a leading zero (or digits-e-digits) reloaded as an int/float —
leading zero dropped, or collapsed to Infinity — orphaning the stored
value. Hit ~1 in 1200 repos, deterministically and permanently: the
PATH preset (D-106) and the pre-existing Claude account binding for
such a repo vanished on every restart with no diagnostics. Same defect
class as the T-376 value-corruption fixes in this file; found by the
T-511 review pass, confirmed against the live store.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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