# revision history seems to lump together separate edits

https://math.stackexchange.com/posts/23268/revisions

What's shown in the revision history with the summary "clarification" was actually two separate edits I made -- I added the bulk of the text in an edit that I summarized as something like "added $a$ and $b$ and how to determine them", and then made only a minor modification to that and summarized it as "clarification". That first summary and its diff don't show up in the revision history, and the diff that's shown for the summary "clarification" is actually the diff for both edits combined.

I think this is the first time that I used dollar signs in the edit summary, so the problem might be related to that.

• I suspect that your "clarification" edit was done within five minutes of the first edit. The system lets you change things during five minutes without updating the time stamp of the edit (this holds for comments, answers editing of answers and editing of questions). Furthermore I assume that changing the "added $a$ and $b$" to "Clarification" has modified the summary of that edit. – t.b. Feb 22 '11 at 20:41