If you're using this style to cite works of art (and possibly others that are coded as "graphics") you will see the date field repeated in the citations. I commented out line 1153 of the macro definition for "issue-note" (basically the last if statement, which calls a macro called "issued" which prints the date you have entered for the item) and that solves the problem for artworks, but who knows what else it might break.

https://s3.amazonaws.com/zotero.org/images/forums/u31444/zw23yjdfhicaeksyq96c.jpg