$ git clone -n https://src.fedoraproject.org/rpms/cairomm1.16.git /var/lib/mock/f40-build-756456-118844/root/chroot_tmpdir/scmroot/cairomm1.16
Cloning into '/var/lib/mock/f40-build-756456-118844/root/chroot_tmpdir/scmroot/cairomm1.16'...
$ git reset --hard a285e2d0225e640fc2e940e454463eef62a8ffe7
HEAD is now at a285e2d Update to 1.18.0