Patch for Production Order Track Operation

erpnext/patches/v5_1/track_operations.py

@@ -0,0 +1,8 @@
+from __future__ import unicode_literals
+
+import frappe
+
+def execute():
+	frappe.reload_doctype("Production Order")
+	frappe.db.sql("""Update `tabProduction Order` as po set track_operations=1 where 
+		exists(select name from `tabProduction Order Operation` as po_operation where po_operation.parent = po.name )""")