Can only launch Nautilus once in GNOME shell

[Didier Roche-Tolomelli]

Press super, type "nautilus", type enter
-> nautilus can be only launched once this way, same with any new pinned dash icon.

This is due to having both nautilus.desktop and org.gnome.Nautilus.desktop, despite this one having OnlyShowIn=, GNOME Shell converts nautilus.desktop to org.gnome.Nautilus.desktop, but still think that nautilus.desktop is running (as nautilus desktop background drawing icons instance), hence no dash icon unicity between the already present one and this new one.
The older dash icon desktop file was converted as well, but it doesn't match as in memory it's org.gnome.Nautilus.desktop.

We end up as well with 2 desktop files with identical names in the dash preference settings.
The easy fix without impacting Unity is to:
1. append to "OnlyShowIn=Unity;" in org.gnome.Nautilus.desktop, "GNOME"
2. add "NotShowIn=GNOME;" in nautilus.desktop
-> that way, only org.gnome.Nautilus.desktop will be matched by GNOME. There is no transition issue as Unity is matching nautilus to org.gnome.Nautilus.desktop already, so no transition needed.

More discussion and debugging on IRC at https://irclogs.ubuntu.com/2017/07/26/%23ubuntu-desktop.html#t07:12

[Launchpad Janitor (janitor)]

This bug was fixed in the package nautilus - 1:3.24.1-0ubuntu5

---------------
nautilus (1:3.24.1-0ubuntu5) artful; urgency=medium

  * debian/rules:
    - Only show org.gnome.Nautilus.desktop under GNOME Shell causing
      subtile bugs like "can only launch nautilus once" (LP: #1706542)

 -- Didier Roche <email address hidden> Wed, 26 Jul 2017 10:09:52 +0200