I see Alexander is going to take care of this.  But to clarify what I suggested for your information:

In an ideal world it would be a committer doing the patch review, followed by a checkin.  But in the real world there aren't enough of us with enough time to get to all the bugs with patches.  You asked how to move it along and I suggested one way: get someone else to do a review.  I wouldn't say that the submitter recruiting a reviewer was a "normal" process, but it is a way to get bugs unstuck.  And we get reviews from non-committers frequently (it is a step along the path to becoming a committer...quality reviews are as important as quality patches).

I don't think there's anything in the devguide about this particular nuance.