// Display title
$displayTitle = $title->getPrefixedText();
- if ( !empty( $pageProperties['displaytitle'] ) ) {
+ if ( isset( $pageProperties['displaytitle'] ) ) {
$displayTitle = $pageProperties['displaytitle'];
}
// Default sort key
$sortKey = $title->getCategorySortkey();
- if ( !empty( $pageProperties['defaultsort'] ) ) {
+ if ( isset( $pageProperties['defaultsort'] ) ) {
$sortKey = $pageProperties['defaultsort'];
}