Q:

Fixing scrolling in nano running in tmux in mate-terminal

The problem:

I open a terminal (in Linux Mint
Mate) and run nano.
I open a second terminal (in Linux Mint Mate) and run tmux.
I open a third terminal (in Linux Mint Mate) and run nano.

The problem is that the second terminal (tmux) scrolls up and down when I scroll in the first terminal