$ git clone -n https://src.fedoraproject.org/rpms/libyaml.git /var/lib/mock/f31-build-71939-30800/root/chroot_tmpdir/scmroot/libyaml
Cloning into '/var/lib/mock/f31-build-71939-30800/root/chroot_tmpdir/scmroot/libyaml'...
$ git reset --hard efa11f4834ac970c848c8aa5b3d1ccf9fb73e93a
HEAD is now at efa11f4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild