- Escape in the path editor now supersedes a navigation the editor already
launched (request-sequence bump + loading reset), so a late success cannot
jump to the cancelled path; the single-pane fallback keeps covering a
superseded selection preview (ds-review-bot).
- The browse flow's pair registration rides ui-slots' new
deferGroupRegistration (one occupant, both holes, as a unit — construction
or late rival conflicts roll back wholesale and fail loud), mirroring
-native and deleting the would-be clone.