Patch - empty result when show mode && no word

generate.php

@@ -28,11 +28,14 @@
 			if($_POST['filter'] === 'hide'){
 				$mode = "_badWords";
 			}
-			Config::set($mode, array_unique(
-				array_map('trim', 
-					explode(',', $_POST['words'])
-				)
-			));
+
+			if(!empty($_POST['words'])){
+				Config::set($mode, array_unique(
+					array_map('trim', 
+						explode(',', $_POST['words'])
+					)
+				));
+			}
 		}
 
   		$oFeeds = new FeedReader($_links);