That's gnome-maps from Debian, not gnome-maps from Flatpak.
Right. Sorry, I was confused because the gnome-shell applications
overview and the top bar says "(Nightly) Maps" but it is the Debian
version. So the shell is probably associating Flatpak's .desktop file
with the Debian binary?
Is that a gnome-shell bug or Flatpaks fault? Would it be possible that
you assign the bug accordingly?
Run "gnome-maps" in a Terminal or something. Flatpak apps aren't in
$PATH (you'd run "flatpak run org.gnome.Maps" from Terminal).
Right, that works. It's just called "Nightly" in the top bar, but it's
not.
Gnome (Software and start menu) only knows about one installed
version
of Gnome Maps.
This is by design, and is not Flatpak's decision. If you want two
independent versions of a particular app, you need to ask their
upstream
developer to install the Flatpak under a different name, perhaps as
"org.gnome.Maps.Nightly.desktop".
This sounds like Gnome Software will support identical names:
"https://blogs.gnome.org/hughsie/2016/07/05/flatpak-and-gnome-software/"
But that's certainly a gnome-software thing.
Thanks.