The per-guest Backup/Snapshot toggle persisted a full copy of the current
global defaults just to flip enabled, freezing the threshold values into
the override. Later global edits (a 32-day backup warning) then silently
never applied to toggled guests, which kept firing at the frozen factory
7-day warning. Reported twice in discussion #1126.
- Guest overrides now resolve against the globals at evaluation time:
zero-valued fields inherit the global value, explicit values still win,
and hand-written sparse overrides stop decoding as accidental zeros.
- The toggles write enabled-only overrides instead of freezing a copy.
- Normalization rewrites stored overrides whose thresholds exactly match
the current globals into sparse form, which is behavior-preserving at
migration time and un-freezes existing installs.
- The Backups/Snapshots global editors reconcile warning/critical pairs
by adjusting the untouched field, so typing a 32-day warning no longer
silently snaps back to the 14-day critical default.
Refs #1126
rcourtman
359a372cdf