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-rw-r--r--src/fields/util.ts4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/fields/util.ts b/src/fields/util.ts
index b6128f5e6..6e72675db 100644
--- a/src/fields/util.ts
+++ b/src/fields/util.ts
@@ -382,8 +382,8 @@ export function updateFunction(target: any, prop: any, value: any, receiver: any
if (!(value instanceof CursorField) && !(value?.some?.((v: any) => v instanceof CursorField))) {
UndoManager.AddEvent(diff?.op === "$addToSet" ?
{
- redo: () => receiver[prop].push(...(newValue as List<Doc>)),
- undo: action(() => (newValue as List<Doc>).forEach(doc => {
+ redo: () => receiver[prop].push(...diff.items),
+ undo: action(() => diff.items.forEach((doc: Doc) => {
const ind = receiver[prop].indexOf(doc);
ind !== -1 && receiver[prop].splice(ind, 1);
}))