List of steps to reproduce (step by step, including full links if applicable):
I ran IABot on my watchlist, and have since noticed that a number of editors have needed to clean up duplicate parameters it created.

What happens?:
IABot, at least in some articles, is adding an "archive-date" parameter to references that already have an archivedate parameter and an "access-date" parameter to refs that already have an "accessdate" parameter.

Example diffs below:
https://en.wikipedia.org/w/index.php?title=List_of_Lehigh_University_alumni&type=revision&diff=1049741352&oldid=1041349507&diffmode=source
https://en.wikipedia.org/w/index.php?title=List_of_Hofstra_University_people&diff=prev&oldid=1049740805&diffmode=source
https://en.wikipedia.org/w/index.php?title=Emma_Ferrer&diff=prev&oldid=1049736009&diffmode=source

What should have happened instead?:
Shouldn't have added the duplicate parameter, or should have just changed accessdate/archivedate to access-date/archive-date.

Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc: