message should be in a single conversation, but appear separately
I'm running Geary on Ubuntu 20.04. I was recently running the 3.36.2 release, but just upgraded to the mainline build.
After this upgrade, I see two messages in my Inbox that should be part of the same conversation, but are now displayed as separate conversations. I received one of these messages yesterday, and the second is a reply that I sent to the first message a few hours ago. 3.36.2 correctly displayed these in a single conversation.