GII requester sends PrepareNewPersistentMemberMessage to other members and then request GII to a provider. Currently the provider would not processing PrepareNewPersistentMemberMessage if it is being shutdown but send a regular reply message to requester. However, provider would process the image request. This causes that requester persists its new id, but provider does not. And this will prevent the requester to be restarted due to ConflictingPersistentDataException.
The fix is to send a failed message when processing image request, thus prevent the request to persist its new id.