Index: branches/5.2.x/core/units/filters/item_filter_eh.php
===================================================================
diff -u -N -r14892 -r14979
--- branches/5.2.x/core/units/filters/item_filter_eh.php	(.../item_filter_eh.php)	(revision 14892)
+++ branches/5.2.x/core/units/filters/item_filter_eh.php	(.../item_filter_eh.php)	(revision 14979)
@@ -64,6 +64,13 @@
 				}
 			}
 
+			$exclude_filters = $this->Application->GetVar('exclude_filters');
+
+			if ( $exclude_filters ) {
+				$exclude_filters = $this->Conn->qstrArray(explode(',', $exclude_filters));
+				$object->addFilter('field_filter', '%1$s.FilterField NOT IN (' . implode(',', $exclude_filters) . ')');
+			}
+
 			if ( $event->getEventParam('per_page') === false ) {
 				$event->setEventParam('per_page', -1);
 			}