fix : update data from edit employee in grouping in cws

ServiceHost/wwwroot/AssetsClient/pages/RollCall/js/ModalEditEmployeeGroup.js

@@ -766,6 +766,7 @@ async function ajaxEditEmployeeSaveData() {
 // save all data
 var saveData = {};
 function saveDataLocal() {
+    saveData = {}
     var hasBreakTime = "false";
     if ($('#BreakTime').prop('checked')) {
         hasBreakTime = $("#BreakTime").prop("checked") ? "true" : "false";