wfDebug( 'newGroups: ' . print_r( $newGroups, true ) . "\n" );
wfDebug( 'oldUGMs: ' . print_r( $oldUGMs, true ) . "\n" );
wfDebug( 'newUGMs: ' . print_r( $newUGMs, true ) . "\n" );
wfDebug( 'newGroups: ' . print_r( $newGroups, true ) . "\n" );
wfDebug( 'oldUGMs: ' . print_r( $oldUGMs, true ) . "\n" );
wfDebug( 'newUGMs: ' . print_r( $newUGMs, true ) . "\n" );