diff --git a/packages/core/src/common/const.ts b/packages/core/src/common/const.ts
index 46c68bd3f5..d36b0ddfef 100644
--- a/packages/core/src/common/const.ts
+++ b/packages/core/src/common/const.ts
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-export const DOCS_NORMAL_EDITOR_UNIT_ID_KEY = '__defaultDocumentNormalEditorSpecialUnitId_20231006__';
+export const DOCS_NORMAL_EDITOR_UNIT_ID_KEY = '__INTERNAL_EDITOR__DOCS_NORMAL';
 
-export const DOCS_FORMULA_BAR_EDITOR_UNIT_ID_KEY = '__defaultDocumentFormulaBarEditorSpecialUnitId_20231012__';
+export const DOCS_FORMULA_BAR_EDITOR_UNIT_ID_KEY = '__INTERNAL_EDITOR__DOCS_FORMULA_BAR';
 
 export const DEFAULT_EMPTY_DOCUMENT_VALUE = '\r\n';
 
 export function createInternalEditorID(id: string) {
-    return `__internalEditorId__${id}`;
+    return `__INTERNAL_EDITOR__${id}`;
 }
 
 export function isInternalEditorID(id: string) {
-    return id.startsWith('__');
+    return id.startsWith('__INTERNAL_EDITOR__');
 }
diff --git a/packages/core/src/services/instance/instance.service.ts b/packages/core/src/services/instance/instance.service.ts
index 8613bcb93d..b1486ac5d2 100644
--- a/packages/core/src/services/instance/instance.service.ts
+++ b/packages/core/src/services/instance/instance.service.ts
@@ -41,7 +41,7 @@ export interface IUniverInstanceService {
     /** Subscribe to curtain type of units' creation. */
     getTypeOfUnitAdded$<T extends UnitModel>(type: UnitType): Observable<T>;
 
-    /** @interal */
+    /** @ignore */
     __addUnit(unit: UnitModel): void;
 
     /** Omits value when a UnitModel is disposed. */
diff --git a/packages/docs/src/services/doc-skeleton-manager.service.ts b/packages/docs/src/services/doc-skeleton-manager.service.ts
index 49db1b833d..951e8026dd 100644
--- a/packages/docs/src/services/doc-skeleton-manager.service.ts
+++ b/packages/docs/src/services/doc-skeleton-manager.service.ts
@@ -43,13 +43,13 @@ export class DocSkeletonManagerService extends RxDisposable implements IRenderMo
     ) {
         super();
 
-        this._update();
+        this._init();
 
         this._univerInstanceService.getCurrentTypeOfUnit$<DocumentDataModel>(UniverInstanceType.UNIVER_DOC)
             .pipe(takeUntil(this.dispose$))
             .subscribe((documentModel) => {
                 if (documentModel?.getUnitId() === this._context.unitId) {
-                    this._update();
+                    this._update(documentModel);
                 }
             });
     }
@@ -61,8 +61,12 @@ export class DocSkeletonManagerService extends RxDisposable implements IRenderMo
         this._currentSkeleton$.complete();
     }
 
-    private _update() {
+    private _init() {
         const documentDataModel = this._context.unit;
+        this._update(documentDataModel);
+    }
+
+    private _update(documentDataModel: DocumentDataModel) {
         const unitId = this._context.unitId;
 
         // No need to build view model, if data model has no body.
@@ -73,6 +77,8 @@ export class DocSkeletonManagerService extends RxDisposable implements IRenderMo
         // Always need to reset document data model, because cell editor change doc instance every time.
         if (this._docViewModel && unitId === DOCS_NORMAL_EDITOR_UNIT_ID_KEY) {
             this._docViewModel.reset(documentDataModel);
+
+            this._context.unit = documentDataModel;
         } else if (!this._docViewModel) {
             this._docViewModel = this._buildDocViewModel(documentDataModel);
         }
@@ -86,8 +92,6 @@ export class DocSkeletonManagerService extends RxDisposable implements IRenderMo
 
         this._currentSkeletonBefore$.next(skeleton);
         this._currentSkeleton$.next(skeleton);
-
-        return this.getSkeleton();
     }
 
     getSkeleton(): DocumentSkeleton {