When subscribing or unsubscribing fromn issue or PR, this is done with ajax, and we currently only change the text of the subscribe / unsubscribe button when it succeeds.
We should also reduce / increment the subscriber count, and remove the user's avatar from the subscribers list.
Metadata Update from @ryanlerch: - Issue assigned to ryanlerch
Commit 5682fd58 fixes this issue
Commit ccb2e086 fixes this issue