Items not retrievable in prison

[Shaft]

Had a couple of situations:
- Deconstructed a bed in a prison.  Metal was not able to be retrieved.  Changing beds to make the room not a prison immediately fixed it.
- Colonist was incapacitated in the prison.  Weapon was not retrievable.  Again, making it not a prison fixed the issue.

For obvious reasons, changing the prison bed priorities is not always an option if you have prisoners.  I would consider this a bug.