"Smudge error" cloning gst-integration-tests

[ptomato]

I'm trying to build gst-plugins-bad in my Flatpak manifest, using flatpak-github-actions@v6. It errors out while cloning a git submodule, gst-integration-tests.

Here's the relevant snippet from the manifest:

  - name: gstreamer-plugins-bad
    cleanup:
      - /bin
      - /include
      - /lib/libgst*.so*
      - /lib/pkgconfig
    buildsystem: meson
    subdir: subprojects/gst-plugins-bad
    config-opts:
      - -Dauto_features=disabled
      - -Dnls=enabled
      - -Dmodplug=enabled
    sources:
      - type: git
        url: https://gitlab.freedesktop.org/gstreamer/gstreamer.git
        tag: '1.22.5'
        commit: bf6ce1d64a0697e7910826147b48f8f658366a5a

Here's the relevant part of the build output from GitHub Actions:

========================================================================
Building module gstreamer-plugins-bad in /__w/inform7-ide/inform7-ide/.flatpak-builder/build/gstreamer-plugins-bad-1
========================================================================
Note: switching to '1.22.5'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at bf6ce1d Release 1.22.5
Cloning into '/__w/inform7-ide/inform7-ide/.flatpak-builder/build/gstreamer-plugins-bad-1/subprojects/gst-integration-testsuites/medias'...
Downloading defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi (12 MB)
Error downloading object: defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi (279b735): Smudge error: Error downloading defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi (279b7350cb70da40896ec1eebb447923c76805dd80c135f7d6da1a35ffe79e0a): error transferring "279b7350cb70da40896ec1eebb447923c76805dd80c135f7d6da1a35ffe79e0a": [0] remote missing object 279b7350cb70da40896ec1eebb447923c76805dd80c135f7d6da1a35ffe79e0a

Errors logged to '/__w/inform7-ide/inform7-ide/.flatpak-builder/build/gstreamer-plugins-bad-1/.git/modules/subprojects/gst-integration-testsuites/medias/lfs/logs/20231017T034503.630287497.log'.
Use `git lfs logs last` to view the log.
error: external filter 'git-lfs filter-process' failed
fatal: defaults/avi/bowlerhatdancer.sleepytom.SGP.mjpeg.avi: smudge filter lfs failed
fatal: Unable to checkout '06f5a5a9bad01b5cf76184aee4f430c834a9dac3' in submodule path 'subprojects/gst-integration-testsuites/medias'
Error: module gstreamer-plugins-bad: Child process exited with code 128