refactor: refetch on change

apps/server/src/services/rundown-service/rundownCache.ts

@@ -215,6 +215,7 @@ export function getMetadata() {
     lastEnd,
     totalDelay,
     totalDuration,
+    revision,
   };
 }
 
@@ -243,6 +244,12 @@ export function mutateCache<T extends object>(mutation: MutatingFn<T>) {
 
     const { newEvent, newRundown, didMutate } = mutation({ ...params, persistedRundown });
 
+    // early return without calling side effects
+    if (!didMutate) {
+      isStale = false;
+      return { newEvent, newRundown, didMutate };
+    }
+
     revision = revision + 1;
     persistedRundown = newRundown;