Hi,
I have created a workflow property which once the Incident is closed then all the fields in the form are NOT Editable and it is working fine.
Workflow property:

Still i am able to edit the Request Type which even the ticket is closed still i can modify the Request Type but i don't that kind of functionality which means once the ticket is closed Request Type is also Not editable.
Is this possible in Jira if yes please suggest me the solution for the same.
Closed ticket screenshot:

Thanks,