Merge branch 'ent-10972-error-de-visualizacion-en-creacion-de-alerta-correlada-condiciones-en-vista-simple-y-detallada' into 'develop'

Ent 10972 error de visualizacion en creacion de alerta correlada condiciones en vista simple y detallada

See merge request artica/pandorafms!5761

pandora_console/include/javascript/pandora_fullcalendar.js

@@ -445,7 +445,12 @@ function save_data_input(calendar) {
 
 // eslint-disable-next-line no-unused-vars
 function loadEventBBDD(events) {
-  if (events == undefined || events === null || events === "") {
+  if (
+    events == undefined ||
+    events === null ||
+    events === "null" ||
+    events === ""
+  ) {
     $(".alert_schedule").show();
     return {};
   }