From 7f0aa0697aa0f4c5f014596afe90d4f17ada8317 Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Tue, 3 Mar 2026 19:20:25 +0200
Subject: [PATCH] fix(spreadsheet): error due to duplicate unit IDs

---
 apps/client/src/widgets/type_widgets/Spreadsheet.tsx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/apps/client/src/widgets/type_widgets/Spreadsheet.tsx b/apps/client/src/widgets/type_widgets/Spreadsheet.tsx
index 8965c6c94d..d8e6b93ed2 100644
--- a/apps/client/src/widgets/type_widgets/Spreadsheet.tsx
+++ b/apps/client/src/widgets/type_widgets/Spreadsheet.tsx
@@ -82,6 +82,12 @@ function usePersistence(note: FNote, noteContext: NoteContext | null | undefined
             const univerAPI = apiRef.current;
             if (!univerAPI) return undefined;
 
+            // Dispose the existing workbook.
+            const existingNotebook = univerAPI.getActiveWorkbook();
+            if (existingNotebook) {
+                univerAPI.disposeUnit(existingNotebook.getId());
+            }
+
             let workbook: Partial<IWorkbookData> = {};
             if (newContent) {
                 try {