Issue description

My terminal emulator has special extended keys for C-i and C-m distinct from the standard translation of these key sequences to TAB and RET respectively.

Up until recently I used to be able to bind TAB and C-i independently without issue. For example after running tmux bind-key -T prefix / command-prompt -k -p key "list-keys -1N "%%%"". I can do <prefix> / C-i and it shows C-i, whereas <prefix> / TAB showed TAB.

However now C-i is shown as TAB and C-m is shown as RET.

I tried installing an older build (not sure about the specific commit, the version still says next-3.3) and this wasn't an issue there dispite using the same config. I believe this is a regression.

Required information

Please provide the following information:

• tmux version (tmux -V). tmux next-3.3
• Platform (uname -sp). Linux unknown
• $TERM inside and outside of tmux (echo $TERM). st-256color, tmux-24bit
• Logs from tmux (tmux kill-server; tmux -vv new). older-server-log, master-server-log