Merge pull request #33963 from frappe/mergify/bp/version-13-hotfix/pr-33946

fix: allow cancelling purchase invoice if linked asset is already cancelled (backport #33946)

erpnext/controllers/buying_controller.py

@@ -755,6 +755,8 @@ class BuyingController(StockController, Subcontracting):
 						asset.purchase_date = self.posting_date
 						asset.supplier = self.supplier
 					elif self.docstatus == 2:
+						if asset.docstatus == 2:
+							continue
 						if asset.docstatus == 0:
 							asset.set(field, None)
 							asset.supplier = None