[16.0][FIX] rma: fix returned quantity in picking return wizard

[sbejaoui]

fixes: #418

[OCA-git-bot]

Hi @chienandalu, @pedrobaeza,
some modules you are maintaining are being modified, check this out!

[pedrobaeza]

AFAIK, this provokes some side effects in the "assign" method, not letting to fetch quants freely, but not sure if it applies here. Check also the effect in the delivered quantity, forecast, and so on.

[sbejaoui]

AFAIK, this provokes some side effects in the "assign" method, not letting to fetch quants freely, but not sure if it applies here. Check also the effect in the delivered quantity, forecast, and so on.

Quant reservation is restricted by the original move when the source location is internal. However, this restriction is not applied if the source location is a supplier location.

For the quantities on the sale order, a move is considered only if it's linked to the sale line. BTW, I pushed a commit to allow this link if we want to have a standard refund after RMA reception.

[pedrobaeza]

What happens if you have RMA reception in several steps? I think this won't be correct in that case.

[sbejaoui]

What happens if you have RMA reception in several steps? I think this won't be correct in that case.

I will add a test to be sure