Comment 36 for bug 995916

The fix works for me (at least with the test case in the bug description), but it breaks my Thunderbird launcher icon. I'm running a modified Thunderbird.desktop file that executes a script to run davmail as well as thunderbird, and the launcher now shows a second Thunderbird launcher icon for the running Thunderbird. It used to match it correctly with the launcher icon that I have pinned to the launcher.