R-1251 (P1): a pending put-back blocks every start — a cut restore's copy on an unbound drive waits (a restore hold), is poured back when the drive binds before any start; a failed put-back holds the app (H2); Stop during a restore still puts back (H7). Commit only, unreleased.

controller/internal/settings/settings.go

@@ -1988,6 +1988,10 @@ const (
 	// rolled back, the live definition written back, and the app is held: its files and volumes are the
 	// snapshot's, its database the pre-restore one. Cleared like a restore hold — by the operator.
 	HoldReasonRestoreMixed = "restore_mixed"
+	// HoldReasonPutBackPending (R-1251): a restore was cut after its copy of the live data was taken, and the copy
+	// is on a drive that was not bound when the box came back. Nothing may start the app until the copy is poured
+	// back (backup.AppStopGuard.ResumePutBack); SafetyDump holds the copy's folder. Cleared by the put-back.
+	HoldReasonPutBackPending = "putback_pending"
 )
 
 // SetRestoreHold records a hold. Modelled on SetDisconnected: a condition, plus what it is holding.
@@ -2044,11 +2048,13 @@ func (s *Settings) ClearRestoreHold(stack string) (bool, error) {
 // stays: that one means a database was left in an unknown state and is cleared by the operator
 // (`-clear-restore-hold`), never by a removal or an install. Returns whether a hold was cleared.
 // Pinned by TestR704_ClearUpdateHoldClearsTheInstallsHoldsOnly.
+// R-1251: a put-back still waiting for its drive (HoldReasonPutBackPending) belongs to the install too — its copy is
+// of the removed install's volumes, and a later install of the same name must not wait for it.
 func (s *Settings) ClearUpdateHold(stack string) (bool, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	h, ok := s.RestoreHolds[stack]
-	if !ok || (h.Reason != HoldReasonUpdateFailed && h.Reason != HoldReasonUnhealthyStop) {
+	if !ok || (h.Reason != HoldReasonUpdateFailed && h.Reason != HoldReasonUnhealthyStop && h.Reason != HoldReasonPutBackPending) {
 		return false, nil
 	}
 	delete(s.RestoreHolds, stack)