When moving a workspace, a dialog asks if you want to inherit permissions from the new parent.
When saying "OK", the permissions dialog appears and flashes as it iterates through all of the users and groups.
When finished, it is showing the last row of the users/groups as selected, but all permissions are visibly set to "None" even though the last user/group in the list may have full (or other) permissions.
Selecting any other user or group, and then re-selecting the last row will show the correct permissions.