Ask for help-please help to response,thank you!

[xiaotu65217]

Hello,my friend!
          Today when I use the openssl 0.9.8y,I met a problem,please help me.
          The problem is : I upgrade the openssl form version 0.9.8w to 
0.9.8y,a progress occured coredump.I finally found that the issue is:
          /* Fix this function so that it takes an optional type parameter */
X509 *SSL_get_certificate(const SSL *s)
    {
    if (s->server)
        return(ssl_get_server_send_cert(s));   //it changed here，and add this 
two lines.
    else if (s->cert != NULL)
        return(s->cert->key->x509);
    else
        return(NULL);
    }
   So my question is :why you modiy this SSL_get_certificate function?Did you 
modify the other codes at the same time or just this two lines?
   If I modify this function,and roll back,do I need to rolback other code ?

  Thank you very much!

The pciture is captured from the openssl0.9.8y,and the bugs and fixs show like 
the following: