Search.Filter.HTML: Return the first <title>.

There may be multiple <title>-tags in an html document where the
later are related to SVG.

Fixes #10020.

.gitattributes

@@ -11,7 +11,6 @@
 /lib/modules/Search.pmod/Database.pmod/MySQL.pike foreign_ident
 /lib/modules/Search.pmod/Filter.pmod/Base.pike foreign_ident
 /lib/modules/Search.pmod/Filter.pmod/Charset.pmod foreign_ident
-/lib/modules/Search.pmod/Filter.pmod/HTML.pmod foreign_ident
 /lib/modules/Search.pmod/Filter.pmod/PDF.pmod foreign_ident
 /lib/modules/Search.pmod/Filter.pmod/PlainText.pmod foreign_ident
 /lib/modules/Search.pmod/Filter.pmod/Word.pmod foreign_ident

lib/modules/Search.pmod/Filter.pmod/HTML.pmod

 // This file is part of Roxen Search
 // Copyright  2000,2001 Roxen IS. All rights reserved.
 //
-// $Id: HTML.pmod,v 1.42 2007/03/16 14:45:38 jonasw Exp $
+// $Id$
 
 // Filter for text/html
 
@@ -139,6 +139,7 @@ static string clean(string data) {
   array(string) parse_title(Parser.HTML p, mapping m, string c, mapping e) {
     if (e->noindex)
       return ({ });
+    if (!res->fields->title)
       res->fields->title = clean(c);
     return ({c});
   };