[FIX] point_of_sale: vailable categories in POS

When you are selecting the some available categories of products for a
point of sale config, it won't let you select a start categories
anymore. This is caused by changes made on onchange in rev:f44571f550dfa34ddb1a62bbe03e78a4dadf8eda
that makes the records of One2many with new_ids instead of classical
ids.

The other problem is that if you return a in an ocnchange, the domain
does not apply when you are starting to edit a record.

To fix the behavior, we are comparing the ids, instead of the recordst
makes the records of One2many with new_ids instead of classical ids.

We've also created a computed fields that contains the ids that can be
selected.

TASK-ID: 2057436

0 files changed, 0 insertions, 0 deletions