Problem occurs when we try to export report data and click
'I want to update data (import-compatible export)'.
We might end up exporting data when only field to export
is - External ID (id).
To reproduce an issue (for example):
Go to Time Off/Reporting/by Type; Remove filters from search.
Select couple records, then Action/Export.
On the wizard, click on 'I want to update data (import-compatible export)'.
Click on External ID from 'Available fields' to add it to 'Fields to export'.
Click export.
It gives traceback -
File "/data/build/odoo/addons/web/controllers/main.py", line 710,
in write_header self.worksheet.set_column(0, i, 30) # around 220 pixels
UnboundLocalError: local variable 'i' referenced before assignment
task - 2687370
closesodoo/odoo#84191
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>