How do you exit vimdiff mode in vim, specifically, for Fugitive?

Question

I am using vim with the fugitive extension. It has a :Gdiff command which brings you into vimdiff mode, but what is the right/quick way to close/quit vimdiff mode?

I.e.,

Answer 1

noremap do :diffoff \| windo if &diff \| hide \| endif

Quite diff mode and close other diff windows. (Note: fugitive will auto delete its hidden buffers.)