$ git clone -n https://src.fedoraproject.org/rpms/python-BTrees.git /var/lib/mock/f40-build-783074-132645/root/chroot_tmpdir/scmroot/python-BTrees
Cloning into '/var/lib/mock/f40-build-783074-132645/root/chroot_tmpdir/scmroot/python-BTrees'...
$ git reset --hard 6c3e1b6d3f7c29972ef008c70a1e7a480f8a625f
HEAD is now at 6c3e1b6 Version 5.2