$ git clone -n https://src.fedoraproject.org/rpms/libmfx.git /var/lib/mock/f31-build-116622-34577/root/chroot_tmpdir/scmroot/libmfx
Cloning into '/var/lib/mock/f31-build-116622-34577/root/chroot_tmpdir/scmroot/libmfx'...
$ git reset --hard f563f7134a1e97748fc511d602766fca5cd5c1a9
HEAD is now at f563f71 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild