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If a post is edited (by the owner or by people with more 750 / 2K rep), then made Community Wiki, the edit history is lost.

As these comments show, such loss can be detrimental to the question.

Can this be changed?
Why does it happen in the first place?

EDIT: Fixed link

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What are you talking about? Show a revision list as an example. – random Feb 2 '10 at 2:03
I've removed my answer, and changed the tags back. I can't see if this is really happening or not. – Lance Roberts Feb 2 '10 at 2:06
@Lance: What do you mean? If you look at the link, you'll clearly see that this does happen. – SLaks Feb 2 '10 at 2:10
Still don't see it. Post a properly annotated screenshot. – random Feb 2 '10 at 2:16
@random: You mean, with freehand circles? – SLaks Feb 2 '10 at 2:31
My point is that reading the comments clearly shows that the question was edited, yet looking at the edit history shows nothing. – SLaks Feb 2 '10 at 2:31
@Slaks, with the fixed link I see what you mean, though it looks like we've got an answer, +1 for bringing to our attention – Lance Roberts Feb 2 '10 at 16:15
up vote 2 down vote accepted

This isn't about CW doing anything to the comments or the history. This is about the five minute edit grace period

Timestamp of the the question in question: 18:34:41Z

First answer timestamp: 18:36:19Z

Between the first post and the end of the grace period we have about one minute and 38 seconds. Magical time. Time enough inside the five-minute window to change the original question post. It may have been switched to CW in that time, but it's also possible to change the entire bulk or title of the post as well.

And we can then deduce that it was Professor Plum in the library with the wrench.

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ah yes I have seen this before... – Jeff Atwood Feb 2 '10 at 2:51
Don't know about 2:38. – random Feb 2 '10 at 2:56
1:38, not 2:38. But still aeons of time to add a snarky comment that is rendered contextless! – Ether Feb 2 '10 at 3:01
Calculating time is only easy when numbers aren't involved. Thanks @Æther – random Feb 2 '10 at 3:11
Woohoo, I answer in magical time! – mmyers Feb 2 '10 at 5:45

What you're describing does not happen.

I suspect you are referring to edits during the 5 minute grace period after posting (or editing, for that matter), which are automatically collapsed together.

If so that is [status-bydesign].

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