$ git clone -n https://src.fedoraproject.org/rpms/celt051.git /var/lib/mock/f31-build-64072-29493/root/chroot_tmpdir/scmroot/celt051
Cloning into '/var/lib/mock/f31-build-64072-29493/root/chroot_tmpdir/scmroot/celt051'...
$ git reset --hard 991e93875139c0f5e3707d9b5ed890ce72405e52
HEAD is now at 991e938 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild