AutoGrid now caches the search passed to the most recent loadAll call
separately from any filters passed via PCrudFilterDialog. This allows
AutoGrid to retain externally-supplied (persistent) filters (e.g.
context org unit selector) while being able to easily remove filters
passed via the filter dialog.
Signed-off-by: Bill Erickson <berick@esilibrary.com> Signed-off-by: Mike Rylander <mrylander@gmail.com>