[IMP] purchase: error message linked to product, not company
[FIX] stock: multicompany reception

When a picking is confirmed, the generated account.move(.line) should take the
company, accounts, journals and period with the same company as the picking,
not the one of the current user.

This was problematic if a user in a company confirm a picking linked to
a purchase order done in another company.
For real time valuations, the generated accounting entries were mixing both
companies.

Fixes #3466
[FIX] product: more accurate name_search

First, name_search searches on default_code, then, if the limit is not reached, it searches on the product name
The results found from the default code search must be removed from the search domain when doing the search on the product name, to avoid having results already found by the search on the default_code

opw-618015
[FIX] point_of_sale: missing multi-company rule
[FIX] web: do not set the one2many dirty on field validation

This rev. 06104ba553702b16878d52c5b8ab089355216a5e

Added the dirty flag on the o2m field when the editor of the editable list was enabled (meaning that the editable list has been altered)) because the dirty flag was not set correctly by the one2many during the edition, at the time.

It looks like this is now the case

Besides, as now, we valid all the editable list of the form, wether or not the editable list was altered, we must not set the o2m as dirty anymore.
[FIX]Invoice created from purchase order with invoicing method : Based on Receptions, doesn't consider purchase order pricelist currency