I'm using Cygwin with Mintty and have set the git editor to nano:
git config --global core.editor "nano".
Now when I just run
nano, the UI is black and white and the shortcuts, like ctrl+o and ctrl-x work just as expected. But when I create a git commit, nano's UI is colored, the shortcuts don't work any more and when I press the arrow keys, the letters A,B,C and D are entered. On Linux, I've never seen nano behave differently when run through git.
What causes this and how can I disable this?
Edit: It seems this is caused by a .nanorc file in C:\cygwin64\usr\share\nano, but there's no git.nanorc or gitcommit.nanorc file in there.