https://en.wikipedia.org/wiki/Category:Redirects_from_Unicode_characters
When I view Category:Redirects from Unicode characters on the second page, starting 10 entries down on the third column, the entries become unclickable/selectable. This continues onto the third page. These appear to be the ones that run from wiki/%CC%80 to /wiki/%CD%AC which appear to be the diacritics. I'm using Windows 7 SP1 and Chrome 38.0.2125.111.
Originally reported at VP:Technical at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical)#Inability_to_select_on_Diacritics.28.3F.29_in_Category:Redirects_from_Unicode_characters
User on different system/browser verified.