Nano is stuck in Insert mode

Hello,

I'm currently using the latest version of WebStorm 2026.2.0.1 on a Mac. When I open a file in the WebStorm terminal using nano (e.g., nano ~/.gitconfig), the file opens in INSERT mode, and I can't exit it.

I tried remapping the Insert key to another shortcut to disable it, but nothing worked.
I also tried the usual troubleshooting steps (switching the terminal to Classic/Reworked 2025, restarting the IDE, etc.).

I couldn’t find anything in the Terminal settings that affects this, but if I open a file using nano in my Mac terminal, I don’t have this problem.

If anyone has any ideas, I'd love to hear them. I get the feeling this is a recent change because I would have noticed it before, since I use nano as my rebase/squash interface.