Re: [ISSUE] [CLOSED] TMUX inserting terminal color info into prompt

[leahneukirchen <leahneukirchen@users.noreply.github.com>]

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Closed issue by OliveThePuffin on void-packages repository

https://github.com/void-linux/void-packages/issues/48807

Description:
### Is this a new report?

Yes

### System Info

Void 6.6.16_1 x86_64 AuthenticAMD notuptodate rrrrmmnDFFFFFF

### Package(s) Affected

tmux-3.4_1, rxvt-unicode-9.31_3

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

_No response_

### Expected behaviour

Whenever attaching to a session, or creating a new session, tmux does not inserts any text into the prompt.

For example the prompt should look like:
```
locolhost%
```

### Actual behaviour

Whenever attaching to a session, or creating a new session, tmux inserts this text into the prompt.

For example this text is inserted after the prompt:
```
localhost% 10;rgb:e500/dd00/eb00]11;rgba:0000/0000/0000/aa00
```
This seems to be the terminal background and foreground color.

Note: Everything works fine on tmux version 3.3a_2.
This also doesn't happen on all terminals (eg, xterm is fine)

### Steps to reproduce

Open a Urxvt terminal ($TERM is rxvt-unicode-256color)
create or attach to a tmux session ($TERM should now be tmux-256color)

On my end, I verified that this bug exists in bspwm and xfce4 and in bash and zsh