Fix 169798: Failed to install ca signing certificate with NS3.6beta.

r=wtc

security/nss/lib/certhigh/certhigh.c

@@ -890,6 +890,8 @@ cert_ImportCAChain(SECItem *certs, int numcerts, SECCertUsage certUsage, PRBool
 	    goto loser;
 	}
 	
+	/* if the cert is temp, make it perm; otherwise we're done */
+	if (cert->istemp) {
 	    /* get a default nickname for it */
 	    nickname = CERT_MakeCANickname(cert);
 
@@ -899,6 +901,9 @@ cert_ImportCAChain(SECItem *certs, int numcerts, SECCertUsage certUsage, PRBool
 	    if ( nickname ) {
 		PORT_Free(nickname);
 	    }
+	} else {
+	    rv = SECSuccess;
+	}
 
 	CERT_DestroyCertificate(cert);
 	cert = NULL;