[FIX] account_reconcile_oca : keep partner line case of manual button reconcile

account_reconcile_oca/models/account_bank_statement_line.py

@@ -516,6 +516,8 @@ class AccountBankStatementLine(models.Model):
                     line["partner_id"],
                     self.env["res.partner"].browse(line["partner_id"]).display_name,
                 )
+            elif self.partner_id:
+                new_line["partner_id"] = self.partner_id.name_get()[0]
             new_data.append(new_line)
         return new_data, reconcile_auxiliary_id