Root cause of the multi-focus/multi-search/linked-terminal bug: the in-memory
id counter resets to 0 each daemon start, but restore() never advanced it past
restored ids. After a restart new_surface_id() re-minted existing ids → the same
surface_id appeared twice in a layout tree (rendered as two panels sharing focus,
search bar, and output channel — one ends up blank). Session-persistence made
restarts routine, surfacing the latent bug.
- restore() now reseeds the counter to max(restored id)+1
- ops::dedupe_leaves heals an already-corrupted persisted tree on load
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
vasyansk
