Bug in MoveNext and MovePrevious methods of Recordset class module
Reported in https://forum.openoffice.org/en/forum/viewtopic.php?f=47&t=76640

Change-Id: I6d622e803f2ddcea67415bacb720c6084751d837
Reviewed-on: https://gerrit.libreoffice.org/16124Reviewed-by: Lionel Elie Mamane <lionel@mamane.lu>
Tested-by: Lionel Elie Mamane <lionel@mamane.lu>