SideKick ecmascript parser causing 100% CPU usage

Lately I've noticed that when using jEdit, CPU usage will inevitably spike to 100% and continue to do so until I close jEdit. I've determined that this happens when using the SideKick plugin -- the problem goes away if I disable all plugins and restart jEdit -- and while editing JavaScript files, specifically. If I pop open SideKick I notice that the ecmascript parser seems to be parsing the file but it's apparent that it's hanging.

Technically, I suppose this is a problem with the XML plugin, not SideKick. I can confirm that the problem does not crop up when I change jEdit to use its javascript parser for JS files instead of ecmascript.

I'm using jEdit 4.3pre10 on Linux, with SideKick 0.7.4 and XML 2.0.6.