$ git clone -n https://src.fedoraproject.org/rpms/libmfx.git /var/lib/mock/f31-build-58999-28525/root/chroot_tmpdir/scmroot/libmfx
Cloning into '/var/lib/mock/f31-build-58999-28525/root/chroot_tmpdir/scmroot/libmfx'...
$ git reset --hard 17f47d863bd8a070353d4d94322a716bffdbfea5
HEAD is now at 17f47d8 Update changelog