$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cairo-gobject.git /var/lib/mock/f31-build-114670-34464/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject
Cloning into '/var/lib/mock/f31-build-114670-34464/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject'...
$ git reset --hard d0032657569e5dfc739e99caa576d9c18e4f122c
HEAD is now at d003265 3.3.7