fix reset dashboard notification was shown multiple times under circumstances (#10496)

73901757 · Thomas Steur · GitHub · 53c40514 · 73901757
--- a/plugins/Dashboard/angularjs/dashboard/dashboard.directive.js
+++ b/plugins/Dashboard/angularjs/dashboard/dashboard.directive.js
@@ -29,6 +29,7 @@
            widgetsHelper.getAvailableWidgets();
+            $('#dashboardWidgetsArea').off('dashboardempty', showEmptyDashboardNotification);
            $('#dashboardWidgetsArea')
                .on('dashboardempty', showEmptyDashboardNotification)
                .dashboard({