// The following is needed to give the hook the full content of the
// new revision rather than just the current section. (Bug 52077)
- if ( !is_null( $params['section'] ) && $contentHandler->supportsSections() ) {
+ if ( !is_null( $params['section'] ) && $contentHandler->supportsSections() && $titleObj->exists() ) {
$sectionTitle = '';
// If sectiontitle is set, use it, otherwise use the summary as the section title (for