$ git clone -n https://src.fedoraproject.org/rpms/vlc.git /var/lib/mock/f41-build-860086-168769/root/chroot_tmpdir/scmroot/vlc
Cloning into '/var/lib/mock/f41-build-860086-168769/root/chroot_tmpdir/scmroot/vlc'...
$ git fetch origin 750e615d65b492de110dcda02a19d7b6e4e4668e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vlc
 * [new ref]         750e615d65b492de110dcda02a19d7b6e4e4668e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 750e615 Enable aribcam