That function was kept because its `intersperse` reimplementation behaves a bit differently but it was a long time ago and no bug report appeared. So the new function is good enough. bzr revid: vmt@openerp.com-20130212111244-aayco60ps923fn55
bzr revid: abo@openerp.com-20130211170128-2r28k5ldou1qn1n5