Re: using oldest date when squashing commits

> during interactive rebasing, i sometimes find it necessary to move a
> hunk from one commit to a later one in the branch. now, if that hunk
> cannot be re-ordered with the later commit due to conflicting with it,
> it becomes necessary to squash the later commit onto a temporary commit
> created from the extracted hunk, not the other way around (or using a
> stash). unfortunately, this causes the author date of the later commit
> to be reset, which can rather seriously falsify the date if the branch
> is long-lived.