When I add a single
$wgRevokePermissions['noc']['edit'] = true;
in LocalSettings.php, nothing appears on Special:UserGroupRights, unless another
$wgGroupPermissions['noc']['createpage'] = true;
is added. However, no matter whether $wgGroupPermissions exists, Special:UserRights can list the new user group correctly.
Version: 1.17.x
Severity: enhancement