if ( !is_null( $nullRevision ) ) {
$nullRevision->insertOn( $dbw );
$page = WikiPage::factory( $title );
# Update page record
$page->updateRevisionOn( $dbw, $nullRevision );
if ( !is_null( $nullRevision ) ) {
$nullRevision->insertOn( $dbw );
$page = WikiPage::factory( $title );
# Update page record
$page->updateRevisionOn( $dbw, $nullRevision );