fix builder save

app/javascript/template_builder/builder.vue

@@ -3006,10 +3006,11 @@ export default {
       this.save()
     },
     rebuildVariablesSchema ({ disable = true } = {}) {
-      const parsed = {}
-
       const dynamicDocumentRef = this.documentRefs.find((e) => e.isDynamic)
 
+      if (dynamicDocumentRef) {
+        const parsed = {}
+
         this.documentRefs.forEach((ref) => {
           if (ref.isDynamic) {
             ref.updateVariablesSchema()
@@ -3030,4 +3031,5 @@ export default {
       }
     }
   }
+}
 </script>