$sizeSel = intval( $wgUser->getOption( 'imagesize' ) );
if ( !isset( $wgImageLimits[$sizeSel] ) ) {
$sizeSel = User::getDefaultOption( 'imagesize' );
$sizeSel = intval( $wgUser->getOption( 'imagesize' ) );
if ( !isset( $wgImageLimits[$sizeSel] ) ) {
$sizeSel = User::getDefaultOption( 'imagesize' );