Environment details (Put x in the checkbox along with the information)

• Operating System: Windows 10 Enterprise LTSC 1809 + Cygwin latest
• Terminal Emulator: mintty
• Shell: fish
• Program options used: -e
• Issue exists on nnn master

Exact steps to reproduce the issue

This issue applies only to native Windows editors, such as nvim. Cygwin editors (vim, nano, etc) work 100% correctly.
c:/cygwin/home/file.txt -> press e -> editor opens a non-existent /home/file.txt with c:/cygwin missing.
Works correctly if rename file.txt to file.any and select the editor in the opener.

I realize that nnn on Windows is rare, but hopefully this issue is solvable. Such an amazingly perfect file manager, feel like missing a hand without it...