[FIX] product: Pricelist with multiple based other items only process the first item

[carlosdauden]

Description of the issue/feature this PR addresses:
Pricelist with multiple based other items only process

Current behavior before PR:
Only process first global based on other pricelist

Desired behavior after PR is merged:
If do not match item in the based pricelist continue with other global items

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@Tecnativa

[dbo-odoo]

While I understand the use case, this is definitely not something we can do in stable.

We might target it for master, but since this is a rather important change in behaviour, I will need to discuss it with my Product Owner (@fgi-odoo). It's cealry an [IMP] and not a [FIX]... I'll need to discuss the change (and also discuss how a migration might need to introduce new rules to keep the same behaviour for people that switch versions).

Could you describe the use-case very precisely (e.g. with examples/video/screenshot)? Even now that you've showed it to me, it's rather difficult to explain properly without being confusing 😃