Duplicate Can't delete resource prefixes

[Sirmadsen]

Affected version

2.0 Beta 7

Whenever trying to delete an prefix in resources nothing happens and the prefix changes name to "resource_prefix.id"

 

[Mike]

While this was reported later, it has details on the actual error that's happening, so we'll track this issue here: https://xenforo.com/community/threads/can-not-delete-resource-prefix-from-admincp.136610/