Last modified: 2014-10-11 10:39:57 UTC
In https://en.wikipedia.org/w/index.php?title=Wikipedia:VisualEditor/Feedback&diff=621079160&oldid=621075505 it is pointed out that if an argument to a template contains a | then <nowiki>|</nowiki> is added. The new magic word {{!}} might be a better alternative. See also bug 67863
A relevant diff is https://en.wikipedia.org/w/index.php?title=Bone_remodeling&diff=prev&oldid=621072608