See PHI251. This requests an "Ignore generated changes." option for Owners. There may not be a direct path to this today, but this is almost certainly a plannable feature.
See PHI285. An install would like a way to monitor changes to Herald rules. This mostly needs planning. The actual implementation may not be difficult, it's just not clear if "Herald rules for Herald rules" are the best approach.
See PHI592. A diff with 600MB of videos required more than two hours to turn into an email patch, which exceeded the task lease duration and cascaded into various other kinds of problems. This is somewhat adjacent to T11767.