Last modified: 2013-11-19 10:12:11 UTC
The visual editor will, when italicising text, create a new, redundant pipe for the wikilink to apply the italics to. An example (because my description is pretty awful): https://en.wikipedia.org/w/index.php?title=Prisoner%27s_dilemma&diff=572732066&oldid=572542499 You can see that it does [[Foo|''Foo'']], which of course should be ''[[Foo]]'' for conciseness.
Merging with bug 50098. Thanks for the report! *** This bug has been marked as a duplicate of bug 50098 ***