diff --git a/config/dmsDefaults.php b/config/dmsDefaults.php
index 0715aa3..5e79e0e 100644
--- a/config/dmsDefaults.php
+++ b/config/dmsDefaults.php
@@ -47,7 +47,7 @@ if (defined('DMS_DEFAULTS_INCLUDED'))
 }
 
 define('DMS_DEFAULTS_INCLUDED',1);
-define('LATEST_WEBSERVICE_VERSION',3);
+define('LATEST_WEBSERVICE_VERSION',2);
 
 
 if (function_exists('apd_set_pprof_trace')) {
diff --git a/ktwebservice/webservice.php b/ktwebservice/webservice.php
index 3226c1f..8e8f3c9 100644
--- a/ktwebservice/webservice.php
+++ b/ktwebservice/webservice.php
@@ -97,7 +97,7 @@ define('KTWS_ERR_DB_PROBLEM',				99);
 
 if (!defined('LATEST_WEBSERVICE_VERSION'))
 {
-	define('LATEST_WEBSERVICE_VERSION', 3);
+	define('LATEST_WEBSERVICE_VERSION', 2);
 }
 
 	function bool2str($bool)
@@ -950,7 +950,7 @@ class KTWebService
             	);
          }
 
-         if($this->version >= 3)
+         if($this->version >= 2)
          {
              // add_document
              $this->__dispatch_map['add_document'] =
@@ -2276,7 +2276,7 @@ class KTWebService
      */
     function add_document($session_id, $folder_id,  $title, $filename, $documenttype, $tempfilename, $unique_file_id = null)
     {
-        if(empty($tempfilename)){
+        if(empty($tempfilename) && !empty($unique_file_id)){
             $upload_manager = new KTUploadManager();
             $tempfilename = $upload_manager->get_tempfile_from_unique_id($unique_file_id);
 
@@ -3765,7 +3765,7 @@ class KTWebService
 	 */
 	function update_document_metadata($session_id,$document_id,$metadata, $sysdata=null)
 	{
-    	$this->debug("update_document_metadata('$session_id',$document_id,$metadata, $sysdata)");
+    	$this->debug("update_document_metadata('$session_id',$document_id," . print_r($metadata, true) . print_r($sysdata, true));
 
     	$kt = &$this->get_ktapi($session_id );
     	$responseType = 'kt_response';
diff --git a/lib/documentmanagement/documentutil.inc.php b/lib/documentmanagement/documentutil.inc.php
index 667dce8..8e0ea2c 100755
--- a/lib/documentmanagement/documentutil.inc.php
+++ b/lib/documentmanagement/documentutil.inc.php
@@ -10,7 +10,7 @@
  * KnowledgeTree Community Edition
  * Document Management Made Simple
  * Copyright (C) 2008, 2009 KnowledgeTree Inc.
- * 
+ *
  *
  * This program is free software; you can redistribute it and/or modify it under
  * the terms of the GNU General Public License version 3 as published by the
@@ -588,21 +588,21 @@ $sourceDocument->getName(),
 	 * - If still no valid date then takes the integers and separators to produce a best guess.
 	 */
 	function sanitizeDate($sDate) {
-	
+
 	    //Checking for Normal Strings, e.g. 13 August 2009 etc. All formats accepted by strtotime()
 	    $datetime = date_create($sDate);
 	    $resDate = date_format($datetime, 'Y-m-d');
-	
+
 	    if (!trim($resDate) == '') {
 	        return $resDate;
 	    } else {
 	        //If null then removing quotes e.g. 14'th doesn't yield a valid date but 14th does
 	        $sDate = str_replace("'", '', $sDate);
 	        $sDate = str_replace('"', '', $sDate);
-	
+
 	        $datetime = date_create($sDate);
 	        $resDate = date_format($datetime, 'Y-m-d');
-	
+
 	        if (!trim($resDate) == '') {
 	            return $resDate;
 	        } else {
@@ -610,22 +610,22 @@ $sourceDocument->getName(),
 	            //Stripping non-numerics
 	            $sDate = preg_replace('/[^0-9]/', '-', $sDate);
 	            $token = strpos($sDate, '--');
-	
+
 	            while ($token != 0)
 	            {
 	                $sDate = str_replace('--', '-', $sDate);
 	                $token = strpos($sDate, '--');
 	            }
-	
+
 	            $datetime = date_create($sDate);
 	            $resDate = date_format($datetime, 'Y-m-d');
-	
+
 	            return $resDate;
-	
+
 	        }
 	    }
 	}
-    
+
     // Forcefully sanitize metadata, specifically date values, to account for client tools that submit unvalidated date input
     // Will produce a best effort match to a valid date format.
     function sanitizeMetadata($oDocument, $aMetadata){
@@ -640,7 +640,7 @@ $sourceDocument->getName(),
             }
             $aSimpleMetadata[$oField->getId()] = $sValue;
         }
-        
+
         foreach ($aFieldsets as $oFieldset) {
             $aFields =& $oFieldset->getFields();
             $aFieldValues = array();
@@ -649,32 +649,34 @@ $sourceDocument->getName(),
                 if (!empty($v)) {
                     $aFieldValues[$oField->getId()] = $val;
                 }
-                 
+
                 //Sanitizing Date Values
                 if ($oField->getDataType() == 'DATE') {
                 	$val = KTDocumentUtil::sanitizeDate($val);
                 }
-                
+
 				if (!is_null($val)) {
 	            	$MDPack[] = array(
 	                	$oField,
 	                    $val
 	                );
 	            }
-                
+
             }
         }
-                
+
         return $MDPack;
     }
-    
+
     // {{{ saveMetadata
     function saveMetadata(&$oDocument, $aMetadata, $aOptions = null) {
         $table = 'document_fields_link';
-        
+
         //Sanitizing Date Fields
-        $aMetadata = KTDocumentUtil::sanitizeMetadata($oDocument, $aMetadata);
-        
+        if(!empty($aMetadata)){
+            $aMetadata = KTDocumentUtil::sanitizeMetadata($oDocument, $aMetadata);
+        }
+
         $bNoValidate = KTUtil::arrayGet($aOptions, 'novalidate', false);
         if ($bNoValidate !== true)
         {
@@ -1655,7 +1657,7 @@ $sourceDocument->getName(),
 
         DBUtil::commit();
     }
-    
+
     public static function getDocumentContent($oDocument)
     {
         global $default;
@@ -1686,7 +1688,7 @@ $sourceDocument->getName(),
         }
 
         $content = file_get_contents($path);
-        
+
         return $content;
     }
 }