[Pkg-utopia-maintainers] Bug#916059: flatpak: Installing for user fails: open(O_TMPFILE): No Permission

[Maria]

Package: flatpak
Version: 1.0.6-1
Severity: normal

Dear Maintainer,

installing a flatpak as a user fails:

$ flatpak --user install flathub org.gnome.Platform/x86_64/3.26
Installing in user:
org.gnome.Platform/x86_64/3.26                  flathub d01b14e467c2
org.freedesktop.Platform.VAAPI.Intel/x86_64/1.6 flathub 82006efc71d3
org.freedesktop.Platform.ffmpeg/x86_64/1.6      flathub d757f762489e
org.gnome.Platform.Locale/x86_64/3.26           flathub e730b2c2e992
Is this ok [y/n]: y
Installing for user: org.gnome.Platform/x86_64/3.26 from flathub
Fehler: Failed to installieren org.gnome.Platform/x86_64/3.26: open(O_TMPFILE):
Keine Berechtigung [No Permission]


If you have any questions I'll try to provide more information.
Thanks for your work and support!



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages flatpak depends on:
ii  bubblewrap             0.3.1-2
ii  libappstream-glib8     0.7.12-1
ii  libarchive13           3.2.2-5
ii  libc6                  2.27-8
ii  libglib2.0-0           2.58.1-2
ii  libgpgme11             1.12.0-4
ii  libjson-glib-1.0-0     1.4.4-1
ii  libostree-1-1          2018.9.1-1
ii  libpolkit-gobject-1-0  0.105-22
ii  libseccomp2            2.3.3-3
ii  libsoup2.4-1           2.64.1-3
ii  libxau6                1:1.0.8-1+b2
ii  libxml2                2.9.4+dfsg1-7+b2
ii  xdg-desktop-portal     1.0.3-1

Versions of packages flatpak recommends:
ii  desktop-file-utils                                   0.23-4
ii  gtk-update-icon-cache                                3.24.1-2
ii  hicolor-icon-theme                                   0.17-2
ii  libpam-systemd                                       239-13
ii  p11-kit                                              0.23.14-2
ii  policykit-1                                          0.105-22
ii  shared-mime-info                                     1.10-1
ii  xdg-desktop-portal-gtk [xdg-desktop-portal-backend]  1.0.2-2

Versions of packages flatpak suggests:
ii  avahi-daemon  0.7-4+b1

-- no debconf information