Inventory valuation records now use the correct description when a product valuation or costing method changes. This helps finance and inventory teams understand why valuation entries were created and avoids confusion in audit trails.

Changing the quotation template on a sales quote now clears the previously selected optional products. This prevents products from an old template from accidentally staying on the quote, helping sales teams keep quotations accurate.

Description of the issue/feature this PR addresses:
<b>Task:</b> https://www.odoo.com/web?#id=2005838&action=333&active_id=131&model=project.task&view_type=form&menu_id=4720
<b>Pad:</b> https://pad.odoo.com/p/r.c9308300096a6d1bef5944a1dcefff74
Current behavior before PR:

Desired behavior after PR is merged:




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This fixes demo and test data so product units of measure are consistent in point of sale, stock, and delivery scenarios. It helps keep sample data and automated checks reliable without changing everyday business workflows.

Task 1883670