Why is Tag-a-Longs listed as a Cub Scout Rank?

On the rank dropdown list for Cubscouts, there is a rank called “Tag-a-Longs”, but I don’t see one for AOL / Webelos II.

Are Tag-a-Longs a rank from a different organization outside of Scouts BSA?

This might also explain why I see a lot of achievements that are not Scout BSA in our views.