keepalive error: noop: Connection channels closed
I'm running Geary from git mainline on Ubuntu 20.04.
I just hit this crash, which I don't think I've seen before:
*[wrn] 14:09:50.0763 Geary.Imap: [goa_account_1591587948_1] [imap] [closed] GearyImapClientSession: Keepalive error: a026 noop: Connection channels closed
Here's a log of recent activity, plus a full backtrace: