Unity > Launcher ... changed behavior after upgrading to 12.04
After upgrading to 12.04 the behavior for double-clicking the launcher-icons has changed.
When I previously (Ubuntu 11.10) double-clicked an icon in the launcher - e.g. the gnome-terminal - and there more then one gnome-terminals open (also on different workspaces) a preview with all gnome-terminals on all workspaces disappeared.
Now (Ubuntu 12.04) this behavior has changed. Here is this preview limited to the current workspace. The gnome-terminal from the other workspaces will be ignored.
Is there anybody who can tell me, how to reset the old feature?