Subscribe to new failures for given issue
What?
Allow registered user to subscribe to an issue (or a filter) so when there are any new failures associated with it they will get an email. User should be able to browse their subscriptions and unsubscribe easily.
Why?
Here's an example:
drm/igt-gpu-tools#12 (comment 291396)
This bug has a reproduction rate lower than once a week. I have added a bunch of extra logging. Having to remember to check the issue periodically just to get this extra data is hard.