[openssl-dev] [openssl.org #4518] OpenSSL-1.1.0-pre5 RSA_set0_key and related RSA_get0_*, RSA_set0_*, DSA_set0_* and DSA_get0_* problems

[Salz, Rich]

No, he means setting the same value twice.  For example, making this change:
    If (r=->n != n) BN_free(r->n);
    If(r->e != e) BN_free(r->e);
    If (r->d != d) BN_free(r->d);

I agree it shouldn't happen, but do we want to protect against that?  I could be convinced either way.