CopySupport: _duplicate should not call manage_afterPaste

Since last factorisation of code, _duplicate started to call manager_afterPaste
while this was not done before. Thus it prevented the possibility to duplicate
objects with preserved workflow history.

Add test to check _duplicate

product/ERP5Type/CopySupport.py

@@ -461,7 +461,7 @@ class CopyContainer:
         lambda self, ob: True,
         lambda self, ob: ob._getCopy(self),
         1, # Take ownership.
-        True,
+        not(duplicate),
       ),
       ( # 1: Move
         'cb_isMoveable',

product/ERP5Type/tests/testCopySupport.py

@@ -133,6 +133,24 @@ class TestCopySupport(ERP5TypeTestCase):
       ['portal_catalog/uncatalogObjectList', uid_list, 'SQLQueue', False])
     self.assertEqual(len(search_catalog(uid=uid_list)), 0)
 
+  def test_04_duplicate(self):
+    """
+    duplicate is a low level copy method that should preserve workflow histories
+    """
+    person = self.portal.person_module.newContent(portal_type='Person')
+    person.edit(first_name="John")
+    person.edit(last_name="Doe")
+    original_edit_workflow_history = person.workflow_history["edit_workflow"]
+    cp, = self.portal.person_module._duplicate(
+      self.portal.person_module.manage_copyObjects(ids=person.getId()))
+    new_person = self.portal.person_module[cp['new_id']]
+    self.assertNotEqual(new_person.getId(), person.getId())
+    new_edit_workflow_history = new_person.workflow_history["edit_workflow"]
+    self.assertEqual(3, len(original_edit_workflow_history))
+    self.assertEqual(3, len(new_edit_workflow_history))
+    new_person.edit(first_name="Henry")
+    self.assertEqual(3, len(original_edit_workflow_history))
+    self.assertEqual(4, len(new_edit_workflow_history))
 
 def test_suite():
   suite = unittest.TestSuite()