To be clear, I was referring to the actual Adaptability ability, not the Tera-like effect boost alone.
A comparison that might better illustrate it: If I have a Crawdaunt terastalize into a Fighting type, does he get the 2x STAB on Water, Dark, and Fighting, or only on Fighting while Water/Dark have the "normal" 1.5x STAB that non-Adapatability hits get?
Curious because I saw discussion of using an Adaptability Terastal lure (or attacker otherwise) and the specifics seem iffy if the Pokemon gives up power on its old STABs to use the new one. At the same time I'm curious if it works since Terastal still remembers the old types specifically for STAB purposes.