Comment 4 for bug 1070715

So I believe this is indeed fixed in Quantal in version 6.10.0-0ubuntu1 by this changelog entry:
- Changes the swapping order of the detail mode. Now the currently
      active window gets moved to the end, instead of getting swapped
      with the last used window (LP: #1061229)

This is a backport of http://bazaar.launchpad.net/~unity-team/unity/trunk/revision/2827

Now, in Raring (and trunk), this was changed (and caused a regression) by this commit: http://bazaar.launchpad.net/~unity-team/unity/trunk/revision/3096

I will look into how to get the regression fixed properly in trunk and also check with folks to make sure Quantal is now indeed fixed.