MUTATION in internal/backup/update_guard.go:
  - 	return m.updatingCheck != nil && m.updatingCheck(stackName)
  + 	return false

=== RUN   TestSlice4_NightlyLegsLeaveAnAppMidUpdateAlone
    slice4_update_guard_test.go:188: a nightly leg touched an app MID-UPDATE (dumped=[updating free] stopped=[] captured=[updating free] mirrored=[updating free])
--- FAIL: TestSlice4_NightlyLegsLeaveAnAppMidUpdateAlone (0.00s)
FAIL
FAIL	gitea.dooplex.hu/admin/felhom-controller/internal/backup	0.006s
FAIL
exit=1
