$ git clone -n https://src.fedoraproject.org/rpms/mat2.git /var/lib/mock/f45-build-18048-507/root/chroot_tmpdir/scmroot/mat2
Cloning into '/var/lib/mock/f45-build-18048-507/root/chroot_tmpdir/scmroot/mat2'...
$ git fetch origin 70d9a038b8edaf190df76f71853b0ca004b35bf9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mat2
 * [new ref]         70d9a038b8edaf190df76f71853b0ca004b35bf9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70d9a03 fix test failures with FFmpeg 9 (patch by Leigh Scott)