Wikimedia Bugzilla is closed!

I'm using trunk of SMW and trying to create an RSS feed like this:

{{#ask: [[Category:Book Pile]] [[Added by::+]] [[Added on::+]]
|? Added by = creator
|? Added on = date
| sort=Added on
| order=DESC
| format=rss
| rsstitle=Book Pile
| rssdescription=Latest suggestions of books to consider reading.
}}

The feed will work if "= creator" and "= date" are not set. If they are set, I get the following PHP error.

PHP Fatal error:  Call to undefined method SMWDIWikiPage::getShortWikiText() in /srv/www/mediawiki/public_html/w/extensions/SemanticMediaWiki/includes/queryprinters/SMW_QP_RSSlink.php on line 75

PHP Fatal error:  Call to undefined method SMWDITime::getXMLSchemaDate() in /srv/www/mediawiki/public_html/w/extensions/SemanticMediaWiki/includes/queryprinters/SMW_QP_RSSlink.php on line 79

The code in question is the method call on $entry here

if ( strtolower( $req->getLabel() ) == 'creator' ) {
		foreach ( $field->getContent() as $entry ) {
				$creators[] = $entry->getShortWikiText();
		}
} elseif ( ( strtolower( $req->getLabel() ) == 'date' ) && ( $req->getTypeID() == '_dat' ) ) {
		foreach ( $field->getContent() as $entry ) {
				$dates[] = $entry->getXMLSchemaDate();
		}
}

I tried to see if I could figure out a patch but it wasn't obvious to me.