I can confirm your description, but it’s probably important to note that it only seems to happen for VMs that existed before ONE 5.0. The undeploy for that particular VM happend on 26/07/16. We were using ONE 4.14 at that time, we upgraded to 5.0 in early August.
This also holds for the VM that this thread started with (October 27th using ONE 5.0), it was undeployed on 22/07/16. If I understand @ruben correctly, the use of bitmaps started with ONE 5.0. Maybe the bug is in the migrator scripts for the database?
Greetings