Hello,

I'm inherinting some fields from module A that I want to be able to change in custom module B, but I don't want those changes to affect module A

This is my custom module B, that inherits from crm.claim

 from openerp import models, fields, api

from datetime import datetime

class CrmClaim(models.Model):

    _inherit = "crm.claim"

    partner_id = fields.Many2one('res.partner', 'PartnerID')

    Address = fields.Char(related='partner_id.contact_address')

    mobile_phone = fields.Char(related='partner_id.mobile')

I want to be able to change the value of the Address and mobile_phone associated with the claim, without this change affecting res.partner

I've tried using the parameter copy=True, but when I change the phone in claims, it changes the phone in Customers too

Thank you