Widen async_rehydrate's guard to cover the identity and Subdevice rebuild,
not just the replay. A stored row missing a field the current dataclass
declares raised KeyError straight out of async_setup_entry, which only
handles ConfigEntryNotReady -- so the entry landed in SETUP_ERROR, which HA
never retries, with its DTLS session left open on the fixed source port the
next attempt binds. It now fails the same way an unreachable device does.
Write the snapshot immediately instead of through async_delay_save. A
deferred write outlives whatever queued it: removing an entry inside the
delay window deleted the file and then had it recreated, orphaned, when the
timer fired; and a reload scheduled by _reconcile_rehydrated read the
pre-reload snapshot back off disk, so a device going quiet again mid-reload
rehydrated the stale set and reconciled a second time. Banking it before the
reconcile fixes the ordering. Failures are logged rather than raised -- a
board reporting something the JSON encoder rejects must not break polling.
Marc Billow
9d3782a29a