Remove bugged uuid selection in repository manage

            for repo in self.repos:

                if repo.config.name == key:

                    return repo

            # if not found, match uuid

            # we need at least 4 chars to avoid ambiguous uuid matching

            if len(key) >= 4:

                for repo in [r for r in self.repos if not r.config.offline]:

                    if fnmatch.fnmatch(repo.uuid, "%s*" % key):

                        return repo

            else:

                raise ISWarning("Ambiguous argument: we need at least 4 chars "

                              "to match an uuid")

            raise IndexError(u"No repository named: %s" % key)

        else:

            raise TypeError(u"Invalid type %s for %s" % (type(key), key))