$this->addFields( 'ts_tags' );
}
- if ( !is_null( $this->params['tag'] ) ) {
+ if ( isset( $this->params['tag'] ) ) {
$this->addTables( 'change_tag' );
$this->addJoinConds( array( 'change_tag' => array( 'INNER JOIN', array( 'rev_id=ct_rev_id' ) ) ) );
$this->addWhereFld( 'ct_tag', $this->params['tag'] );