Merge pull request #22199 from marination/qi-on-return

fix: Don't prompt for Quality Inspection on Return Documents.
diff --git a/erpnext/controllers/stock_controller.py b/erpnext/controllers/stock_controller.py
index 90d2930..2888c76 100644
--- a/erpnext/controllers/stock_controller.py
+++ b/erpnext/controllers/stock_controller.py
@@ -19,7 +19,8 @@
 class StockController(AccountsController):
 	def validate(self):
 		super(StockController, self).validate()
-		self.validate_inspection()
+		if not self.get('is_return'):
+			self.validate_inspection()
 		self.validate_serialized_batch()
 		self.validate_customer_provided_item()