I am trying to investigate an issue where suddenly Odoo tried to alter the volume field of our product.template from Numeric to Floating Precision.

This field originally had no digits decimal precision. However, one of our modules inherits to add:

volume = fields.Float('Volume', digits=dp.get_precision('Stock Volume'),...

Currently it is already numeric but I don't understand why it tried to alter the DB back to a floating precision. No module upgrade was run.

What could cause such a behaviour?

Thanks