EXT-8202 FIXED Crash when dragging an item into an object

indra/newview/llinventoryfilter.cpp

@@ -238,6 +238,7 @@ BOOL LLInventoryFilter::checkAgainstFilterLinks(const LLFolderViewItem* item) co
 
 	const LLUUID object_id = listener->getUUID();
 	const LLInventoryObject *object = gInventory.getObject(object_id);
+	if (!object) return FALSE;
 	const BOOL is_link = object->getIsLinkType();
 	if (is_link && (mFilterOps.mFilterLinks == FILTERLINK_EXCLUDE_LINKS))
 		return FALSE;