I have a feeling that there aren't many people with enough reviews to have noticed this bug yet - I posted about it here
but didn't get any useful responses.
It is very annoying for those of us who have a lot of reviews. Please could someone from GT have a look at the review.pm module and put it in the bug fixes?
You can do a temporary fix by putting <%Links::Utils::load_reviews%> at the top of your review_search_results template (this does, at least, pull up the correct reviews) but this still leaves some very messy span pages where they are not needed and puts all the reviews on a single page when they are needed.