[FIX] account: disable Amount Matching when invisible

Go to Reconciliation Models > Invoices Matching Rule
Set the parameter 'Amount Matching'
Set 'Partner Is Set & Matches'
Save
Edit
Unset 'Partner Is Set & Matches'

'Amount Matching' will switch to invisible but is not disabled

opw-2261134

closes odoo/odoo#51994

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/account/models/account_reconcile_model.py

@@ -181,6 +181,11 @@ class AccountReconcileModel(models.Model):
         if self.match_total_amount_param < 0 or self.match_total_amount_param > 100:
             self.match_total_amount_param = min(max(0, self.match_total_amount_param), 100)
 
+    @api.onchange('match_partner')
+    def _onchange_match_partner(self):
+        if not self.match_partner:
+            self.match_total_amount = False
+
     ####################################################
     # RECONCILIATION PROCESS
     ####################################################