Lot: Relate to stock moves gives error
When trying to open the stock moves relation from a lot entry, I get the following error:
Traceback (most recent call last):
File "/home/silwol/venv-tryton4/local/lib/python2.7/site-packages/tryton/common/popup_menu.py", line 54, in activate
Action._exec_action(action, data, {})
File "/home/silwol/venv-tryton4/local/lib/python2.7/site-packages/tryton/action/main.py", line 112, in _exec_action
order = decoder.decode(action['pyson_order'])
File "/usr/lib/python2.7/dist-packages/simplejson/decoder.py", line 370, in decode
obj, end = self.raw_decode(s)
File "/usr/lib/python2.7/dist-packages/simplejson/decoder.py", line 400, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
JSONDecodeError: Expecting value: line 1 column 2 (char 1)