1 o Minor bugfix (relay address resolution):
2 - Avoid unnecessary calls to directory_fetches_from_authorities()
3 on relays. This avoids spurious address resolutions and
4 descriptor rebuilds. This is a mitigation for 21789. The original
5 bug was introduced in commit 35bbf2e as part of prop210.
6 Fixes 23470 in 0.2.8.1-alpha.