It were great if you could filter or search for specific revision comments.

Use case: To track the changes applied for a feature, you add some reference number (as used in your project tracking system, e.g. Jira) as a comment to the specific revision(s) of the affected article(s), e.g. a Jira ticket number. If you later need to see what exactly was changed for a particular issue in your project tracking system, you can search or filter the article(s) revision(s) based on that ticket number.