fix for #1493. Avoids deleting checkbox and reference fields in mass edit. Since…

… checkboxes and reference fields have hidden inputs in edit view, those were inadvertenly added in the mass save request.

layouts/v7/modules/Vtiger/resources/List.js

@@ -1379,7 +1379,7 @@ Vtiger.Class("Vtiger_List_Js", {
}
//add url params for hidden fields needed for the save request
-			var hiddenFields = form.find("input[type=hidden]");
+			var hiddenFields = form.children("input[type=hidden]");
hiddenFields.each(function(i, obj){
key = $(this).attr("name");