Dear Maintainer,


Flatpak applications fail to launch when using xfce4-appfinder
in collapsed mode, although they launch successfully in
expanded mode.

Steps to reproduce:
1. Install the Luanti Flatpak (org.luanti.luanti).
2. Open xfce4-appfinder in collapsed mode.
3. Type "luanti" to find the application.
4. Select the application and press Enter.

Expected result:
Luanti launches successfully.

Actual result:
The application fails to launch, and Appfinder reports
"No such file or directory".

Additional observations:
- In expanded mode, typing "luanti" and pressing Enter
  launches the application successfully.
- The issue also affects other Flatpak applications,
  including Signal.
- Flatpak is installed at /usr/bin/flatpak.
- Running the Flatpak launch command directly in a terminal
  works.
- Running "gtk-launch org.luanti.luanti" also works.
- The exported desktop entry is located at:
  /var/lib/flatpak/exports/share/applications/
  org.luanti.luanti.desktop

The Exec entry in the desktop file is:
Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=luanti org.luanti.luanti

This appears to be specific to launching applications from
the collapsed view of Appfinder. The same application can
be launched successfully from the expanded view.