perf: avoid duplicate fetching of stock qty

erpnext/controllers/selling_controller.py

@@ -21,7 +21,11 @@ class SellingController(StockController):
 
 	def onload(self):
 		super().onload()
-		if self.doctype in ("Sales Order", "Delivery Note", "Sales Invoice", "Quotation"):
+		if (
+			self.doctype in ("Sales Order", "Delivery Note", "Sales Invoice", "Quotation")
+			and self.docstatus.is_draft()
+			and not hasattr(self, "_action")
+		):
 			for item in self.get("items") + (self.get("packed_items") or []):
 				company = self.company