[FW][FIX] account_cashbox: add cashbox_id to unique session constraint (

#482)

* [FIX] account_cashbox: add cashbox_id to unique session constraint

X-original-commit: db574bf

* Update __manifest__.py

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Co-authored-by: Camila Vives <cav@adhoc.com.ar>
Co-authored-by: Juan José Scarafía <jjs@adhoc.com.ar>

account_cashbox/models/account_cashbox_session.py

@@ -37,7 +37,7 @@ class AccountCashboxSession(models.Model):
     allow_concurrent_sessions = fields.Boolean(related='cashbox_id.allow_concurrent_sessions')
     company_id = fields.Many2one(related='cashbox_id.company_id', store=True)
 
-    _sql_constraints = [('uniq_name', 'unique(name)', "El nombre de esta sesión de caja debe ser único !")]
+    _sql_constraints = [('uniq_name_cashbox', 'unique(name, cashbox_id)', "El nombre de esta sesión de caja debe ser único!")]
 
     @api.depends('cashbox_id')
     def _compute_user_ids(self):