fix: reposting not fixing valuation rate for sales return using movin… (backport #38895) (#38897)

* fix: reposting not fixing valuation rate for sales return using movin… (#38895)

fix: reposting not fixing valuation rate for sales return using moving average method
(cherry picked from commit 3a668bbe96)

# Conflicts:
#	erpnext/stock/stock_ledger.py

* chore: fix conflicts

---------

Co-authored-by: rohitwaghchaure <rohitw1991@gmail.com>

erpnext/stock/stock_ledger.py

@@ -25,6 +25,7 @@ from erpnext.stock.doctype.stock_reservation_entry.stock_reservation_entry impor
 )
 from erpnext.stock.utils import (
 	get_incoming_outgoing_rate_for_cancel,
+	get_incoming_rate,
 	get_or_make_bin,
 	get_stock_balance,
 	get_valuation_method,
@@ -841,14 +842,33 @@ class update_entries_after(object):
 					get_rate_for_return,  # don't move this import to top
 				)
 
-				rate = get_rate_for_return(
-					sle.voucher_type,
-					sle.voucher_no,
-					sle.item_code,
-					voucher_detail_no=sle.voucher_detail_no,
-					sle=sle,
-				)
+				if self.valuation_method == "Moving Average":
+					rate = get_incoming_rate(
+						{
+							"item_code": sle.item_code,
+							"warehouse": sle.warehouse,
+							"posting_date": sle.posting_date,
+							"posting_time": sle.posting_time,
+							"qty": sle.actual_qty,
+							"serial_no": sle.get("serial_no"),
+							"batch_no": sle.get("batch_no"),
+							"serial_and_batch_bundle": sle.get("serial_and_batch_bundle"),
+							"company": sle.company,
+							"voucher_type": sle.voucher_type,
+							"voucher_no": sle.voucher_no,
+							"allow_zero_valuation": self.allow_zero_rate,
+							"sle": sle.name,
+						}
+					)
 
+				else:
+					rate = get_rate_for_return(
+						sle.voucher_type,
+						sle.voucher_no,
+						sle.item_code,
+						voucher_detail_no=sle.voucher_detail_no,
+						sle=sle,
+					)
 			elif (
 				sle.voucher_type in ["Purchase Receipt", "Purchase Invoice"]
 				and sle.voucher_detail_no