zellij: Multisession state persistence bug?

Basic information zellij --version: zellij 0.23.0 tput lines: 60 tput cols: 125 uname -av: Linux pickle 5.11.0-37-generic #41~20.04.2-Ubuntu SMP Fri Sep 24 09:06:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

cargo 1.56.0 (4ed5d137b 2021-10-04) rustc 1.56.1 (09c42c458 2021-10-18) git version 2.33.0 zsh 5.8 (x86_64-ubuntu-linux-gnu)

Further information I joined my session I used another terminal tab to connect with so I see how multisession is working. And it displayed as expected I guess: I saw whitespace with colored background on tab of another user. When I disconnected it was gone. But day later I reconnect to this session and see this colored whitespace but no users attached to it. When I attached and detached from other tab it was gone. Looks like some state persistence?

The only suspicious log I found in zellij.log is: WARN |zellij_server::panes::gri| 2021-12-22 12:51:51.896 [screen ] [/root/.cargo/registry/src/github.com-1ecc6299db9 ec823/zellij-server-0.23.0/src/panes/grid.rs:2053]: Unhandled csi: p->[12]