Wrong. It's not SQL.
What a pity
Signatures are what makes ecash valid and anyone can validate and transfer signed ecash at will
To me, the transfer is not finalized til the fedimint reissues the ecash for its new owner
Otherwise it's a set of "bearer assets" held by several people rather than a bearer "asset" held by one
Just like the cash you like using
Except with ecash that was only handed over, not burned/reissued, two people can have a copy