for the sake let's wrap the template joins with unicode mapping

rhodecode/templates/admin/repos_groups/repos_groups_show.html

@@ -44,7 +44,7 b''
                       <td>
                           <div style="white-space: nowrap">
                           <img class="icon" alt="${_('Repositories group')}" src="${h.url('/images/icons/database_link.png')}"/>
-                          ${h.link_to(h.literal(' &raquo; '.join([g.name for g in gr.parents+[gr]])),url('edit_repos_group',id=gr.group_id))}
+                          ${h.link_to(h.literal(' &raquo; '.join(map(h.safe_unicode,[g.name for g in gr.parents+[gr]]))),url('edit_repos_group',id=gr.group_id))}
                           </div>
                       </td>
                       <td>${gr.group_description}</td>

rhodecode/templates/admin/users_groups/users_groups.html

@@ -37,7 +37,7 b''
             %for cnt,u_group in enumerate(c.users_groups_list):
                 <tr class="parity${cnt%2}">
                     <td>${h.link_to(u_group.users_group_name,h.url('edit_users_group', id=u_group.users_group_id))}</td>
-                    <td><span class="tooltip" title="${', '.join([x.user.username for x in u_group.members[:50]])}">${len(u_group.members)}</span></td>
+                    <td><span class="tooltip" title="${', '.join(map(h.safe_unicode,[x.user.username for x in u_group.members[:50]]))}">${len(u_group.members)}</span></td>
                     <td>${h.bool2icon(u_group.users_group_active)}</td>
                     <td>
                         ${h.form(url('users_group', id=u_group.users_group_id),method='delete')}