fix: increase address counter only when address could be converted


git-svn-id: https://gnunet.org/svn/gnunet@33414 140774ce-b5e7-0310-ab8b-a85725594a96
-fmt

git-svn-id: https://gnunet.org/svn/gnunet@33415 140774ce-b5e7-0310-ab8b-a85725594a96