Fix #916

layouts/v7/resources/helper.js

@@ -436,7 +436,7 @@ jQuery.Class("Vtiger_Helper_Js",{
if(typeof cb === "function") {
container.off('shown.bs.modal');
//This event is fired when the modal has been made visible to the user
-            container.on('shown.bs.modal', function () {
+            container.one('shown.bs.modal', function () {
cb(container);
});
}