$ git clone -n https://src.fedoraproject.org/rpms/python-BTrees.git /var/lib/mock/f40-build-736203-106594/root/chroot_tmpdir/scmroot/python-BTrees
Cloning into '/var/lib/mock/f40-build-736203-106594/root/chroot_tmpdir/scmroot/python-BTrees'...
$ git reset --hard 222b96665d1c1db6592ac914308dc45e39d9ad5f
HEAD is now at 222b966 Version 5.1