nerdtree window should not open any current buffers
### Expected behavior.

I figure this side window should not change to the regular buffers(from tab layout). I don't know if its possible to change per window.

### The reproduce ways from Vim starting.

\ and some number when in nerdtree will require me use ":q" and f3 to get back.
I think \ should not work the same with the nerdtree window, there is a configuration weirdness
or a pitfall for scatterbrains.

### Output of the `:SPDebugInfo!`

_No response_