When an answer is deleted, then totally re-edited before being undeleted, please change the timestamp to reflect the time of the undeletion rather than the time of the original answer.
This sequence of events made one of my Meta answers look incorrect even though it was correct at the moment I posted it.
This is the edit sequence in question. Don't get me wrong - juergen did a good job by creating the tag, but by changing and undeleting his answer it makes mine (10K+ only) look incorrect - which it wasn't at the time I posted it. Note that I'm not concerned about down votes, I'm concerned about context and accuracy.