`_action_done` could unlink a quant. This happens when moving a product from a
location to another one and makes null the quantity of this product in one of
theses locations. In this case, we unlink the quant because it is now useless
and could be confusing on reports based on quants.
The unwanted side effect is that unlinking a record will invalidate the cache. In
some pathologic cases, like making an inventory adjustment of 600 products
and reseting their quantity back to 0, the time of the operation is around 15
minutes. With this patch that tries to work carefully with the cache invalidation,
the same operations takes around 15 secondes.
This commit do not unlink quant anymore, instead it use a 'garbage
collector' on quants without quantity. The garbage collector is trigger
on the scheduler and when the user open the inventory view.
Previsously picking batch done button automatically run backorder
for picking that need and set a quantity done for picking without it
This commit changes the function done for picking wave in order to
call the needed wizard(set qty_done automatically or asking for a
backorder). Also it override the immediate transfer wizard in order to
pass the picking to backorder found in done function through the process
action.
pick_to_backorder_ids is needed in immediate transfer since we need to
pass the backorders from the done function in stock_picking_batch
through the immediate transfer wizard.
Arnold Moyaux