A Full sync used to read every machine tab the window was not showing as
a close. Missing is not closed: a window is missing tabs whenever it is
emptied (Restart Server clears it for the whole handoff), a rebuild fails,
or state outlives a visit. Each of those turned into a plain TabClose for
every tab, nothing remembered, shells left running as orphans, and the
now-empty workspace was then removed as disposable. Restart Server did
exactly this to a workspace of sixteen agents: any delta during the
handoff synced the emptied window.
#554, #579, #672 and #716 each fenced off one way of reaching that diff.
This removes the inference instead. close_tab_inner, the one path every
user close goes through, records the intent; a sync closes only tabs with
a recorded intent and holds the rest where they are.
l0ng-ai
7b375787f0