Can't resume a session while using cmux #958

Summary

When i try to resume one of my sesssion inside cmux it just infinitely blinks and the TUI is unusable.

Expected Behavior

Should not blink. It works fine running in ghostty, but not inside cmux

Actual Behavior

Steps to reproduce the issue

Inside cmux:

1. open a new session and tell the agent

write a lot of text so that the terminal fills up

so that it will create as much content in your terminal so its scrollable
2. exit cmd
3. resume the session

Command Code Version

1.72.4

Operating System

macOS

Terminal/IDE

cmux

Shell

zsh

Session file (optional)

command-code-session-98475f45.jsonl.zip

Fix prompt (optional)

No response

Additional context

No response