Add previous provider id to contract (!528) · Merge requests · Coopdevs / Som Connexió / Odoo / Odoo SomConnexió

CHANGELOG:

### Added
- [#528](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/528) Add previous provider id to contract

Edited Jul 13, 2021 by Pelayo García

Add previous provider id to contract