The past few times I've edited the tag list on a page for the first time, it has come back with the second to last tag displaying twice, and the last tag not displaying at all. E.g. if I type in for the tags
tagone tagtwo tagthree
the list that will initially be displayed will be tagone tagtwo tagtwo instead of tagone tagtwo tagthree.
I can go back and fix the problem by editing the tags again, but it looks like a counter is off somewhere.