$ git clone -n https://src.fedoraproject.org/rpms/python-persistent.git /var/lib/mock/f33-build-156071-43387/root/chroot_tmpdir/scmroot/python-persistent
Cloning into '/var/lib/mock/f33-build-156071-43387/root/chroot_tmpdir/scmroot/python-persistent'...
$ git reset --hard e39955a826327afe2aec4eee58554f18d1900015
HEAD is now at e39955a Version 4.6.4.  Drop upstreamed -refs patch.