Will email James to verify, assuming this is a Parsoid bug but please feel free to move if not.
It appears that if there is text after a <references /> block (such as <references />stuff the entire thing will duplicate to <references />stuff <references />stuff
This appears to keep escalating. You can see one strong example on [[Chai_with_Lakshmi]] first at http://en.wikipedia.org/w/index.php?title=Chai_with_Lakshmi&diff=prev&oldid=561632390 and then getting worse later on (he stopped using VE for a while) http://en.wikipedia.org/w/index.php?title=Chai_with_Lakshmi&diff=next&oldid=561635039 and for the next 3 edits you can page through.
You can also see an example on my test page http://en.wikipedia.org/w/index.php?title=User:Jalexander/VE&diff=next&oldid=561642103