linuxmint/Cinnamon — pull request #1725 by autarkper (2013-02-19 17:58:00+00:00)
Title: [Scale] Automatically close Scale if opened on an empty workspace.

It makes little sense to open Scale on an empty workspace, and it can
be bewildering, even to experienced users, to see nothing
but a dimmed background image. This patch allows Scale to
be opened, but immediately on opening it briefly shows a
message and returns to the current desktop.