fix: Cr/Dr notes with POS Payments

(cherry picked from commit 68a23730f3fde5d8f306d77c3db5e373b1c6e937)

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -1472,9 +1472,7 @@ class SalesInvoice(SellingController):
 								"credit_in_account_currency": payment_mode.base_amount
 								if self.party_account_currency == self.company_currency
 								else payment_mode.amount,
-								"against_voucher": self.return_against
-								if cint(self.is_return) and self.return_against
-								else self.name,
+								"against_voucher": self.name,
 								"against_voucher_type": self.doctype,
 								"cost_center": self.cost_center,
 							},