I'm looking at the BB cloud event payload for "pull request updated" (https://support.atlassian.com/bitbucket-cloud/docs/event-payloads/#Updated.2) and am trying to figure out if there is something in the payload that provides the data on what fields actually changed? The docs are not very specific about this, for pullrequest it just says "The updated pull request. See the Pull Request entity sample."
So in other words if someone edited the PR title or changed the target branch, how can I tell from the payload that these were the actual PR fields that got changed? Unless I'm missing something, the webhook appears to be sending the entire pull request payload and not just the "changed" fields.
Is there something I'm missing here?