[13.0 / 16.0] Unable to validate multiple transfers together having different operation types (Singleton Error)

[baguenth]

Module

quality_control_stock_oca

Describe the bug

We received an expected singleton error.

Raised the singleton issue when trying to validate multiple pickings (transfers) together having different operation types

File "manufacture/quality_control_stock_oca/models/stock_picking.py", line 59, in action_done
[("picking_type_id", "=", self.picking_type_id.id)]
File "/home/ubuntu/dev/development/odoo/odoo/fields.py", line 3687, in get
raise ValueError("Expected singleton: %s" % record)
ValueError: Expected singleton: stock.picking.type(942, 912, 911)

To Reproduce

Steps to reproduce the behavior:

1. Create multiple transfers, and each transfer must have different operation types.
2. Then validate these transfers together ( picking_ids.action_done() )

Expected behavior

Enable to validate multiple transfers together having different operation types.