The tag alias #78900 footed_sleeper -> onesie is pending approval.

Reason: The difference between a footed sleeper and a onesie is that one is guaranteed to have feet and the other isn't.
I would have suggested an implication instead of an alias, but footed_sleeper (26) is a little niche.

If there's objection to this, we could make it an implication and I could go back through and label all 3000+ images with the correct tag.