z39.50 client fix for a particularly egregious logic flaw where the most recently...

z39.50 client fix for a particularly egregious logic flaw where the most recently fetched results got mapped to all the one screen results.. For example, if you did an initial search and got 10 of 39 results, and then fetched another 10.. the 1st row and the 11th row would refer to the same record, that being the 1st result record of the most recently fetched 10 records.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@7826 dcc99617-32d9-48b4-a31d-7c20da2025e4