return undefined if diff is no-op

automerge · Sep 29, 2024 · 0d45958 · 0d45958
1 parent 1025da9
commit 0d45958
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/syncPlugin.ts b/src/syncPlugin.ts
@@ -100,7 +100,7 @@ export const syncPlugin = <T>({
       }
 
       const diff = pmChangeSet.changedRange(amChangeSet)
-      if (!diff) return undefined
+      if (!diff || diff.from === diff.to) return undefined
 
       // Replace the diff range in ProseMirror doc from the AutoMerge doc.
       const doc = docFromSpans(adapter, spansAfter)