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

erpnext/controllers/selling_controller.py

@@ -428,7 +428,9 @@ class SellingController(StockController):
 				# Get incoming rate based on original item cost based on valuation method
 				qty = flt(d.get("stock_qty") or d.get("actual_qty"))
 
-				if not d.incoming_rate:
+				if not d.incoming_rate or (
+					get_valuation_method(d.item_code) == "Moving Average" and self.get("is_return")
+				):
 					d.incoming_rate = get_incoming_rate(
 						{
 							"item_code": d.item_code,