Set current record after copying records

Since ab82d479eca1 the current record is no longer set on load call

Closes #12820
(grafted from 5aa9aba0e3cc2cc0dabbd672558e2947eb90336a)

--HG--
branch : 7.0

tryton/tryton/gui/window/view_form/screen/screen.py

@@ -821,7 +821,10 @@ class Screen:
                 context=self.context)
         except RPCException:
             return False
-        self.load(new_ids, position=self.new_position)
+        self.group.load(new_ids, position=self.new_position)
+        if new_ids:
+            self.current_record = self.group.get(new_ids[0])
+        self.display()
         return True
 
     def set_tree_state(self):