See, eg, https://en.wikipedia.beta.wmflabs.org/wiki/Special:RecentChanges or https://en.wikipedia.beta.wmflabs.org/wiki/Special:Watchlist
Nothing is shown, page title is just Internal error
Console includes a typeerror:
TypeError: Cannot read property 'limitDefault' of null at MwRcfiltersController.Controller.js.Controller.initialize (<anonymous>:309:163) at init (load.php?lang=en&modules=ext.guidedTour.styles|ext.guidedTour.tour.RcFiltersHighlight|jquery%2Coojs-ui-core%2Coojs-ui-widgets%2Csite|mediawiki.rcfilters.filters.ui&skin=vector&version=ngx62:419) at mw.rcfilters.init.js (load.php?lang=en&modules=ext.guidedTour.styles|ext.guidedTour.tour.RcFiltersHighlight|jquery%2Coojs-ui-core%2Coojs-ui-widgets%2Csite|mediawiki.rcfilters.filters.ui&skin=vector&version=ngx62:420) at runScript (load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector:13) at Array.<anonymous> (load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector:14) at flushCssBuffer (load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector:6)