Comment 1 for bug 1464950

Yeah, relatively recent in its very visible form, but a relatively old problem in its cause.
Fixed in upstream git for a while, but thanks to diverting branches (abi-breakfree unstable and abi-breaking experimental) it hasn't reached a (non-experimental) release yet:
http://anonscm.debian.org/cgit/apt/apt.git/commit/?id=2a884c612b10b27f4be2cc6dd689bfe448d9361a

It is written as an abi break, but could be rewritten to not require one with some care (at least binary compatible, technically source compatibility breaks and theoretically its still a behavior change). I just decided against it at the time it was clear we would have to keep the diversion a little longer than originally planed and backported just the "absolutely needed" stuff. We could do it now, but I guess the time is better spent in stopping to semi-maintain two branches. Hence setting "fix commited" in anticipation of "fix released" soon [all while realizing that I might very well be the biggest blocker in this process with my perfectionism]