[Bugfix] Recover from locked ShuttingDown state (#1215)

Author: ajanikow

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [master](https://github.com/arangodb/kube-arangodb/tree/master) (N/A)
 - (Bugfix) Remove PDBs if group count is 0
 - (Feature) Add SpecPropagated condition
+- (Bugfix) Recover from locked ShuttingDown state
 
 ## [1.2.22](https://github.com/arangodb/kube-arangodb/tree/1.2.22) (2022-12-13)
 - (Bugfix) Do not manage ports in managed ExternalAccess mode

pkg/deployment/resilience/member_failure.go

@@ -52,7 +52,7 @@ func (r *Resilience) CheckMemberFailure(ctx context.Context) error {
 		switch m.Phase {
 		case api.MemberPhaseNone, api.MemberPhasePending:
 			continue
-		case api.MemberPhaseUpgrading, api.MemberPhaseRotating, api.MemberPhaseCleanOut, api.MemberPhaseRotateStart:
+		case api.MemberPhaseUpgrading, api.MemberPhaseRotating, api.MemberPhaseCleanOut, api.MemberPhaseRotateStart, api.MemberPhaseShuttingDown:
 			if len(status.Plan) == 0 {
 				log.Error("No plan but member is in phase %s - marking as failed", m.Phase)
 				m.Phase = api.MemberPhaseFailed