[14][MRP] mrp.production._generate_backorder_productions instantly consuming() Components

[joshkreud]

Impacted versions:

14 / Probably 15

Steps to reproduce:

1. Create Manufacturing Order
2. Finish less than production amount and create Backorders

Current behavior:

The backordered production gets qty_producing from its workoders.
See:

odoo/addons/mrp/models/mrp_production.py

Lines 1462 to 1469 in 05af566

	for old_wo, wo in zip(production.workorder_ids, backorder_mo.workorder_ids):
	wo.qty_produced = max(old_wo.qty_produced - old_wo.qty_producing, 0)
	if wo.product_tracking == 'serial':
	wo.qty_producing = 1
	else:
	wo.qty_producing = wo.qty_remaining
	if wo.qty_producing == 0:
	wo.action_cancel()

This means, that the backordered production, already sets qty_done on all stock.moves that are not serial tracked.

Expected behavior:

qty_producing should either be set by the user in the mrp.production, or by mrp.workorder.button_start

Why should we need to set mrp.workoder.qty_producing upon creating the backorder anyways?

GIF: