$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cairo-gobject.git /var/lib/mock/f37-build-676346-76124/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject
Cloning into '/var/lib/mock/f37-build-676346-76124/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject'...
$ git reset --hard 8b5ebb972765166b36f06843576254eb64dbfe58
HEAD is now at 8b5ebb9 4.0.3