fix: re-validate warehouse after 'update items' (backport #31203) (#31206)

fix: re-validate warehouse after 'update items' (#31203)

(cherry picked from commit c84e11ac82)

Co-authored-by: Ankush Menat <me@ankush.dev>

erpnext/controllers/accounts_controller.py

@@ -2659,7 +2659,8 @@ def update_child_qty_rate(parent_doctype, trans_items, parent_doctype_name, chil
 			parent.update_reserved_qty_for_subcontract()
 			parent.create_raw_materials_supplied("supplied_items")
 			parent.save()
-	else:
+	else:  # Sales Order
+		parent.validate_warehouse()
 		parent.update_reserved_qty()
 		parent.update_project()
 		parent.update_prevdoc_status("submit")