Flood of "Bridge has both an IPv4 and an IPv6 address"
Tor version: 4.7.7.
Several times I got logs like this:
[NOTICE] Bridge '[scrubbed by me]' has both an IPv4 and an IPv6 address. Will prefer using its IPv4 address ([scrubbed by me]) based on the configured Bridge address.
really many times (up to 30 for one bridge, more than 100 if counting different bridges together and ignoring heartbeats), with delays of minutes or even seconds - shortest was less than second. Address is the same all the time, obviously.
Maybe this flood is bug on its own. Maybe reason is legitimate, but it should be ratelimited.