hiding dropbar when on a different buffer.

[madelaney]

I was curious if there is a way to hide the dropbar if/when I switch to another buffer within neovim? I have a layout issue where my git diff is off by one line and I figured if I can hide dropbar when I navagate away from the buffer, that would make things line up.

One example is:

[madelaney]

I found #153, that gives me enough to do what I'm looking to do.