Webhook configured on user_updated event is only triggered when changing a user full name and nothing else

Summary

Webhooks configured to be triggered by the user_updated event are only triggered when changing the full name in the account settings for a user. Changing anything else (e.g. change display name, upload a profile picture, changing the visibility settings for any of the fields) is not triggering the webhook.

Steps to Reproduce

1. Create a webhook triggered by the user_updated event and configure it to be sent to any online debug tool like for example https://www.toptal.com/developers/postbin/
2. Go to the profile and visibility settings for a user on the site
3. Change the full name of the user
4. Go to the online tool and see that the webhook has been sent as expected
5. Now go back to to the profile and visibility settings and change anything else (profile picture, display name, any of the visibility settings, etc)

Expected Results

The webhook is triggered as well

Actual Results

Nothing happens, the webhook is not triggered

Workaround

No workaround available at the moment