fixed accidental removal of $converted_string in xss_clean() for image comparison
diff --git a/system/libraries/Input.php b/system/libraries/Input.php
index 04b373e..5f47909 100644
--- a/system/libraries/Input.php
+++ b/system/libraries/Input.php
@@ -608,6 +608,11 @@
 		}

 		

 		/*

+		 * Capture converted string for later comparison

+		 */

+		$converted_string = $str;

+		

+		/*

 		 * Not Allowed Under Any Conditions

 		 */