Thread:Extension talk:MsCatSelect/Remove category fails when WYSIWYG-CKeditor is installed

First off, love the MsCatSelect extension. I'm seeing a conflict with another popular extension, WYSIWYG-CKEditor (running MediaWiki 1.22.3).

When WYSIWYG-CKEditor is installed, MsCatSelect loses the ability to remove categories. To see this in action: edit an existing page with at least two categories, uncheck/remove one of the Assigned categories, click Save Page. The category you attempted to remove will still exist on the page.

All other MsCatSelect actions (assigning, creating new) work normally, only the ability to remove an existing category fails. Any help or suggestions (beyond uninstalling the other extension) would be much appreciated.