The FCKeditor extension is broken with the new parser in 1.12a.
I tried the following:
FCKeditorParser.body.php line 29:
-parent::Parser();
+parent:: __construct();
FCKeditorParser.body.php line 316:
-replace_callback
+preprocessToDom
Now stuck with:
Fatal error: Cannot use object of type PPNode_DOM as array in D:\mediawiki\phase3\includes\Preprocessor_DOM.php on line 169
Version: unspecified
Severity: blocker