$ git clone -n https://src.fedoraproject.org/rpms/libXcomposite.git /var/lib/mock/f32-build-120515-36957/root/thebuilddir/tmp/scmroot/libXcomposite
Cloning into '/var/lib/mock/f32-build-120515-36957/root/thebuilddir/tmp/scmroot/libXcomposite'...
$ git reset --hard d86c090bfcd83959d74cb8a5b41cc248b0c67c1c
HEAD is now at d86c090 README → README.md