On preview, re-open the preview windows if they've been closed
On preview, re-open the preview windows if they've been closed

(More specifically, just cause them to become hidden, rather than
closed, when the close button is pressed)
funkypandagame/flump,tconkling/flump,mathieuanthoine/flump,tconkling/flump,mathieuanthoine/flump,mathieuanthoine/flump,funkypandagame/flump