Ah okay, the `continue` in the switch was used as a `break 2`.
Changed to a `return` now as no memory is allocated anyway and
nothing further needs to be done. Also makes it immediately clear
(if you read the code) that processing ends there.
one (extjwt_hash_val) to just a simply safe_free() as well which is less
error prone (just needs the value to be initialized to NULL at the beginning
but that is already done).