Traceback (most recent call last):
  File "/trytond/wsgi.py", line 47, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 61, in rpc
    request, database_name, *request.params)
  File "/trytond/wsgi.py", line 39, in auth_required
    return wrapped(*args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 42, in wrapper
    return func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 206, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/model/modelview.py", line 625, in wrapper
    return func(cls, *args, **kwargs)
  File "/trytond/model/workflow.py", line 34, in wrapper
    result = func(cls, filtered, *args, **kwargs)
  File "/trytond/modules/stock/shipment.py", line 1153, in pack
    cls._sync_inventory_to_outgoing(shipments)
  File "/trytond/modules/stock_lot/stock.py", line 156, in _sync_inventory_to_outgoing
    Move.save(moves)
  File "/trytond/model/descriptors.py", line 33, in newfunc
    return self.func(owner, *args, **kwargs)
  File "/trytond/model/modelstorage.py", line 1451, in save
    assert context == record._context
AssertionError