If the Configuration.getBundleLocation or Configuration.setBundleLocation is called, the permission is only checked if the current (or new) location is not the same as the calling bundle's own location. This is assumption is derived from 104.11.1 (Configuration Admin in Compendium Spec):
> Every bundle has the implicit right to receive and configure configurations
> with a location that exactly matches the Bundle’s location or that is null.
Yet this assumption is wrong because this would allow bundles to actually circumvent the permissions set on the Bundle.getLocation() method requiring AdminPermission[this,METADATA] and to allow bundles to get to their locations without permission checking.
The correct assumption is, that only CRUD configuration (properties) itself is allowed but not CRUD on the configuration's location binding.