(F) The failing code has attempted to get or set a key which is not in
the current set of allowed keys of a restricted hash.
-=item Attempt to clear a restricted hash
-
-(F) It is currently not allowed to clear a restricted hash, even if the
-new hash would contain the same keys as before. This may change in
-the future.
-
=item Attempt to delete readonly key '%s' from a restricted hash
(F) The failing code attempted to delete a key whose value has been