erp5_hal_json_style: directly Clone an object when triggering the action

5 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

00:57:21

failed ERP5.UnitTest-Master

01:43:37

failed ERP5.UnitTest-Master.Medusa

01:57:09

passed SlapOS.Eggs.UnitTest-Master.Python2

00:14:33

passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:21