I put together an unlined fretless precision bass bitzer about 25ish years ago. I used top quality parts, but none made by Fender apart from an ‘F’ neck plate. I did however put a 70s style Fender decal on the headstock as I like the aesthetic — there has never been any intention for me to to sell this bass.
A couple of weeks ago, after not having played this bass for a long time — due to losing interest in playing fretless, I gave it a neck transplant using a (fretted) Fender Precision to Jazz bass conversion neck (just a jazz neck with a precision decal) It has also acquired a Fender hi-mass bridge. The bass now has a Fender serial number, so is it now a Fender bass or is it still a fake?