responding in a groupthread results in new thread instead of groupthread channel

[lorenzo132]

Bot Version

3.10.3

How are you hosting Modmail?

Systemd

Error Logs

https://hastebin.cc/viqogunimo.rb

Screenshots

No response

Additional Information

Open a thread > add 3 users to groupthread > have a user respond back in dm to a group message > new thread gets made for the person responding to group

[patrickklaeren]

Same here

[MIGI10]

Same here, I can only have a thread with two users, when the third is added that happens and the channel description doesn't include the third user's ID

[fourjr]

A fix is currently being tested on v3.11.0-dev3, fix is not confirmed yet.