Fix a bug where tags with special characters were not deleted.
Fix a bug where tags with special characters were not deleted.

jondo/paperpile,pombredanne/paperpile,pombredanne/paperpile,jondo/paperpile,jondo/paperpile,jondo/paperpile,pombredanne/paperpile,jondo/paperpile,pombredanne/paperpile,pombredanne/paperpile