Correctly track domains which a client cert has been sent to.

clientcerts.py

@@ -76,6 +76,7 @@ class ClientCertificateManager:
             resp = input("Y/N? ")
             if resp.strip().lower() in ("y", "yes"):
                 self._activate_client_cert(*self.client_certs[gi.host])
+                self.active_cert_domains.append(gi.host)
             else:
                 print("Remaining unidentified.")
                 self.client_certs.pop(gi.host)