- Xml::tags( 'th', null, $this->msg( 'tags-display-header' )->parse() ) .
- Xml::tags( 'th', null, $this->msg( 'tags-description-header' )->parse() ) .
- Xml::tags( 'th', null, $this->msg( 'tags-hitcount-header' )->parse() )
- );
+ Xml::tags( 'th', null, $this->msg( 'tags-display-header' )->parse() ) .
+ Xml::tags( 'th', null, $this->msg( 'tags-description-header' )->parse() ) .
+ Xml::tags( 'th', null, $this->msg( 'tags-active-header' )->parse() ) .
+ Xml::tags( 'th', null, $this->msg( 'tags-hitcount-header' )->parse() )
+ );
+
+ // Used in #doTagRow()
+ $this->definedTags = array_fill_keys( ChangeTags::listDefinedTags(), true );