On Tue, Apr 29, 2014 at 10:50 AM, Mark A. Hershberger mah@nichework.comwrote:
We've gotten some feedback already -- https://github.com/SemanticMediaWiki/SemanticMediaWiki/issues/212 -- about the RC for MediaWiki 1.23 that Markus made last week. Hopefully we can get this issue addressed in time for SMW users.
Someone reported that at https://bugzilla.wikimedia.org/show_bug.cgi?id=62856 but never followed up when questions were asked.
Without further information, it seems to be an extension trying to grab wikitext being parsed from some parser hook and making assumptions that are no longer valid. Chances are that whatever they're trying to do they'll need to do in a different way.