The tag alias #73357 long_sword -> longsword has been approved.

Reason: They mean the same thing.

EDIT: The tag alias long_sword -> longsword (forum #423279) has been approved by @slyroon.

I'm hesitant to offer input at all on what seems to be a Wild West area of tagging where what a given object is taggable as depends on which pieces of fictional, historic, and faux-historic media a viewer has internalised.
Sure, I guess merge these two but I'm not sure how much it helps for tags that don't have a clear on-site definition.

The tag alias long_sword -> longsword (forum #423279) has been approved by @slyroon.