zsh: user-defined signal 1 ko <FILENAME>

[xyproto]

Hi,

When I launch the editor ko to open a file, it works fine under Alacritty or Konsole, but crashes under cool-retro-term.

Steps to reproduce the issue.

1. Install the O editor (o and ko executables) from this project: https://github.com/xyproto/o
2. Launch ko to open any file, like for example ko .zshrc or ko .Xdefaults.
3. Observe the user-defined signal 1 error message.
4. Observe that it works in other terminal emulators.

Expected behavior:

• To launch the ko GTK GUI.

Speculations:

• This could have something to do with the USR1 signal. ko launches o and then sends the USR1 signal to it, and the error message mentions user-defined signal 1.

Thanks for creating cool-retro-term! It has a relaxing and nostalgic feel, to me, that is hard to reproduce with any other terminal emulator.

[xyproto]

Never mind, it happens in other terminal emulators too, when ko is run the second time.