anchor.diff:  %%%===================================================================
   
   service_oneprovider_unregister_register_test(Config) ->
  -    [Node | _] = ?config(oneprovider_nodes, Config),
  -    onepanel_test_utils:service_action(Node, oneprovider, unregister, #{}),
  -    onepanel_test_utils:service_action(Node, oneprovider, register, #{
  +    [OzNode | _] = ?config(onezone_nodes, Config),
  +    [OpNode | _] = ?config(oneprovider_nodes, Config),
  +    onepanel_test_utils:service_action(OpNode, oneprovider, unregister, #{}),
  +    % graph sync connection shut down 5 seconds after unregistration
  +    timer:sleep(timer:seconds(10)),
  +    onepanel_test_utils:service_action(OpNode, oneprovider, register, #{
           oneprovider_geo_latitude => 20.0,
           oneprovider_geo_longitude => 20.0,
           oneprovider_name => <<"provider2">>,
  -        oneprovider_domain => hosts:from_node(Node),
  -        oneprovider_admin_email => <<"admin@onedata.org">>
  +        oneprovider_domain => hosts:from_node(OpNode),
  +        oneprovider_admin_email => <<"admin@onedata.org">>,
  +        oneprovider_token => get_registration_token(OzNode)
       }).
   
   
  
positive.code:         end, OpNodes),
  
          {ok, Posix} = onepanel_lists:get([storages, posix, '/mnt/st1'], NewConfig2),
          onepanel_test_utils:service_action(OpNode, ?SERVICE_OP, deploy, #{
              cluster => #{
                  ?SERVICE_PANEL => #{
  
negative.code:             }
          }),
  
          [OpNode | _] = OpNodes = ?config(oneprovider_nodes, NewConfig2),
          OpHosts = hosts:from_nodes(OpNodes),
          % We do not have a DNS server that would resolve OZ domain for provider,
  