message: Let the failed request use a different connection to not break the main connection
diff: @@ -233,12 +233,12 @@ void FullTest::onRun() {
  }
  { // test authorzation of unknown user in endpoint-code
  - auto response = client->defauthorization("john:doe", connection);
  + auto response = client->defauthorization("john:doe");
  OATPP_ASSERT(response->getStatusCode() == 403);
  }
  { // test call of an endpoint that requiers authorization headers, but we don't send one
  - auto response = client->defauthorizationWithoutHeader(connection);
  + auto response = client->defauthorizationWithoutHeader();
  OATPP_ASSERT(response->getStatusCode() == 401);
  oatpp::String body = response->readBodyToString();
  OATPP_ASSERT(body == "server=oatpp/" OATPP_VERSION "\n"
  @@ -263,7 +263,7 @@ void FullTest::onRun() {
  { // test custom authorization handler with custom authorization object with unknown credentials where the
  // handler returns nullptr
  - auto response = client->myauthorization("john:doe", connection);
  + auto response = client->myauthorization("john:doe");
  oatpp::String body = response->readBodyToString();
  OATPP_ASSERT(response->getStatusCode() == 401);
  OATPP_ASSERT(body == "server=oatpp/" OATPP_VERSION "\n"
  