mediawiki.special.recentchanges.js defines a logic to disable some checkboxes depending on the state of a namespace selector.
This logic is also needed on Special:Contributions and Special:Watchlist (when added, see T33704).
Having a reusable module for this makes it easy to add that the the other special pages.
Please create a module for this. I have no idea for a name of a new module or a good concept for a module design. Thanks.