Covers the four classes found this session (stale editor payload, editor
dismissed without the discard gate, missing withEncryptedMeta, view-blind
UI) with the surrounding cases, not just the ones reported.
Also fixes one more instance found while auditing: deleting a folder
reassigns its entries to All server-side, but an editor open on one of them
kept pointing at the deleted folder and re-created it on Save.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
r-zakarya