Comment 11 for bug 738908

It's debatable whether you should always prevent windows from overlapping multiple workspaces, since with things like the edge switcher plugin you may want to overlap workspaces.

This bug is really a pain when the window isn't even visible to the user. It can be quite frustrating to select the window from the launcher and have nothing visible happen. You're stuck having to search all your workspaces for the window in question.