Crash when creating purchase from request
When creating the purchases of two purchase request I get the following exception:
Traceback (most recent call last):
File "/trytond/wsgi.py", line 109, in dispatch_request
return endpoint(request, **request.view_args)
File "/trytond/protocols/dispatcher.py", line 47, in rpc
return methods.get(request.rpc_method, _dispatch)(
File "/trytond/wsgi.py", line 77, in auth_required
return wrapped(*args, **kwargs)
File "/trytond/protocols/wrappers.py", line 131, in wrapper
return func(request, pool, *args, **kwargs)
File "/trytond/protocols/dispatcher.py", line 181, in _dispatch
result = rpc.result(meth(*c_args, **c_kwargs))
File "/trytond/wizard/wizard.py", line 295, in execute
return wizard._execute(state_name)
File "/trytond/wizard/wizard.py", line 326, in _execute
result = self._execute(transition())
File "/trytond/modules/purchase_request/purchase_request.py", line 446, in transition_start
requests = sorted(requests, key=keyfunc)
TypeError: '<' not supported between instances of 'NoneType' and 'int'
Fault: '<' not supported between instances of 'NoneType' and 'int'
The problem is because one of the purchase request is related to drop_shipment (so it has a customer set) but the other is not.