[18.0][ADD]: rma_sale_stock_picking_group_by_partner_by_carrier: glue module

[StephaneMangin]

Problem

stock_picking_group_by_partner_by_carrier replaces the standard sale.order.picking_ids (One2many via sale_id) with a Many2many computed from move_ids.group_id.sale_ids.

It also adds a sale_ids (Many2many) field on procurement.group.

However, rma_sale._prepare_procurement_group_vals() only sets sale_id (the Many2one) on the procurement group — it does not populate sale_ids (the Many2many).

As a result, stock.picking._compute_sale_ids() → move_ids.group_id.sale_ids returns an empty recordset, and the RMA return picking becomes invisible from the SO.

	Standard	Changes
sale.order.picking_ids	One2many('stock.picking', 'sale_id')	Many2many (computed)
stock.picking → SO link	sale_id (computed from group_id.sale_id)	sale_ids (computed from move_ids.group_id.sale_ids)
procurement.group → SO	sale_id (Many2one)	sale_id + sale_ids (Many2many)

rma_sale only writes sale_id → the M2M path is broken.

[StephaneMangin]

An other problem with the module rma_sale_mrp occurs...

[github-actions]

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