4644: Webhooks custom payload templating not working properly

splatter2 
What version are you running?


3.0.2


What's the URL of the page containing the problem?


/admin/dn/notification/webhooktarget/add


What steps will reproduce the problem?


    

  1. Create Webhook using the following custom payload (based on ReviewBoard documentation example) :
    2. 



{
    "attachments": [{
        "fallback": "Review Request {{review_request.display_id}} published: {{review_request.summary|escapejs}}",
        "pretext": "Review Request {{review_request.display_id}} published",
        "title": "{{review_request.summary|escapejs}}",
        "title_url": "https://reviewboard.example.com/{{review_request.get_absolute_url}}"
    }],
}





    

  1. Do something to trigger the webhook (publish new review, etc.).
    2. 



What is the expected output? What do you see instead?


Web hook should publish information (including review id). 

The review id ({{review_request.display_id}}) and url ({{review_request.get_absolute_url}}) are missing.




What operating system are you using? What browser?


N/A


Please provide any additional information below.


Other template fields that don't work are: {{review_request.owner}}