When I put the 1776 sticker template on Bosman Clifton with unit=Hall's Delaware Regiment, American Revolution WT tried to create the category Hall's Delaware Regiment, American Revolution, American Revolution. When I used unit=Hall's Delaware Regiment WT added the proper category Hall's Delaware Regiment, American Revolution. I looked at a bunch of profiles with the template and none of them appear to show the behavior I saw on the profile I was working. So this is more an FYI than a question. A little mystery for y'all.
UPDATE: I just doublechecked the profile. unit=Hall's Delaware Regiment gives correct category, but the sticker is messed up - after the (correct) sticker text it adds the (valueless) lines Service started:, Unit(s):, Service ended: