Getting "Standard input is not a terminal" with nano

[m0nhawk]

I am not sure how to configure this.

When EDITOR is configured to nano, gitu is failing to open tracked/untracked files:

$ nano changed_file.txt
! Couldn't open editor nano due to: exited with code: 1

And after exiting gitu:

Standard input is not a terminal

---

I was able to narrow it down to:

$ echo "echo" | nano
Standard input is not a terminal
$ echo "echo" | nano -
# nano editor

This is happening with GNU nano, version 8.0, but, for example, works with default "nano" (which is pico) in macOS: Pico 5.09.

Happening in both fish and zsh, so to me it looks like an issue with how gitu sends input to nano.