Pigtail/single_braid

Is it possible to mass edit all of a certain tag used by a certain user (me, in this case) to another tag? I've tagged a bunch of images with pigtail but have now seen that single_braid is by far the more common tag used for such a thing.

Ranma has a single braid, not a pigtail.

A pigtail IS a braid.

http://www.merriam-webster.com/dictionary/pigtail

There just seems to be regional different to how people approach it. When the hair is bunched but not braided, people call that a ponytail. But again, this can vary and according to Wikipedia some people call two ponytails "pigtails" as if "pigtails" is the plural form of "ponytail".

Its a single braid.

It may also be a pigtail, though that would depend on how we're defining the term. Somehow I thought we'd defined pigtail out of existence some time ago, but I really don't feel like checking right now.

And as my sister felt compelled to point out ever single goddamn time Kuno said "Pigtailed girl", "its a freaking rat tail!"

Pigtails is aliased to twin_braids but I guess nobody thought to alias the singular to single_braid.

In forum #13425 it was argued that pigtail(s) were short twintails/ponytail rather than braids, which matches more with my internal representation of them. I guess we already have the one alias somehow, but do we really want to be aliasing from ambiguous / regionally variant terms?

Edit: Actually this very issue was brought up towards the end of that thread, but the issue was left entirely unaddressed.