We should check our IP immediately when cbt notes the network is live again
Running a bridge that had a disappearing network which then reappeared, giving me a different external IP address:
Jan 29 04:55:43.574 [Notice] Tor now sees network activity. Restoring circuit build timeout recording. Network was down for 293 seconds during 24 circuit attempts. Jan 29 05:18:38.281 [Notice] Our IP Address has changed from [scrubbed] to [scrubbed]; rebuilding descriptor (source: 184.108.40.206).
We could cut down that time while the bridge is unreachable by triggering an immediate fetch of directory things afaik, and it seems worthwhile to do just that