This is to avoid a change of behaviour even though it is a result of user
error. When params are duplicated, all but the first are ignored and no
error is returned.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27923)