Use last return amount in invoice_claim_1_template
CHANGELOG:
### FIXED
- [#553](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/553) Use last return amount in invoice_claim_1_template
Edited by Pelayo García
CHANGELOG:
### FIXED
- [#553](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/553) Use last return amount in invoice_claim_1_template