Last modified: 2014-04-21 21:42:25 UTC
See https://office.wikimedia.org/?diff=110032 for an example (private, sorry) This -might- be a VE issue, not sure
Note that the opening tag was <ref> but the closing tag was </reF>. I didn't know you could do that in wikitext.
I now can't reproduce while editing that oldid :( nor with a <ref>...</reF> example on my local wiki.
Roan: this looks like a transient dom diff (either because of the cached version was not available for the diff which lead Parsoid to reparse which could have generated different ref ids causing that ref to get marked edited) which could then forced a full serialization of that ref.
It *might* be that I accidentally touched that reference and undid/cancelled. Or something.
*** This bug has been marked as a duplicate of bug 55461 ***