Otherwise, multiple calls to searchQuery() would accumulate search
terms. searchTerms[] is defined in SearchEngine so we can't just get
rid of it altogether.
Change-Id: Iddbb3920e3a9d5849c99fe90d2d725d16019b51d
$top = $res->fetchRow();
$top = $top[0];
+ $this->searchTerms = array();
if ( $top === "" ) { ## e.g. if only stopwords are used XXX return something better
$query = "SELECT page_id, page_namespace, page_title, 0 AS score " .
"FROM page p, revision r, pagecontent c WHERE p.page_latest = r.rev_id " .