Complete porting bc2dba2 to 14.0: IMP l10n_it_reverse_charge supporti…

…ng "with_supplier_self_invoice" for e-invoices

l10n_it_reverse_charge/models/account_move.py

@@ -72,6 +72,12 @@ def rc_inv_vals(self, partner, rc_type, lines, currency):
             move_type = "out_invoice"
         else:
             move_type = "out_refund"
+        supplier = self.partner_id
+        original_invoice = self.search(
+            [("rc_self_purchase_invoice_id", "=", self.id)], limit=1
+        )
+        if original_invoice:
+            supplier = original_invoice.partner_id
 
         narration = _(
             "Reverse charge self invoice.\n"
@@ -80,7 +86,7 @@ def rc_inv_vals(self, partner, rc_type, lines, currency):
             "Date: %s\n"
             "Internal reference: %s"
         ) % (
-            self.partner_id.display_name,
+            supplier.display_name,
             self.invoice_origin or self.ref or "",
             self.date,
             self.name,