Error in drag_data_get method while dragging columns in export form
When using drag&drop functionality in selected columns appears the error:
Error: Item 0, must be number, not str
File "/home/smorillo/.virtualenvs/trycli50/lib/python3.7/site-packages/tryton/gui/window/win_csv.py", line 265, in drag_data_get
selection.set(selection.get_target(), 8, data)