fix(page): clipboard payload does not have assets (toeverything#6194)

packages/blocks/src/attachment-block/attachment-transformer.ts

@@ -21,7 +21,8 @@ export class AttachmentBlockTransformer extends BaseBlockTransformer<AttachmentB
   ): Promise<SnapshotReturn<AttachmentBlockProps>> {
     const snapshotRet = await super.fromSnapshot(payload);
     const sourceId = snapshotRet.props.sourceId;
-    if (sourceId) await payload.assets.writeToBlob(sourceId);
+    if (!payload.assets.isEmpty() && sourceId)
+      await payload.assets.writeToBlob(sourceId);
 
     return snapshotRet;
   }

packages/blocks/src/image-block/image-transformer.ts

@@ -21,7 +21,7 @@ export class ImageBlockTransformer extends BaseBlockTransformer<ImageBlockProps>
   ): Promise<SnapshotReturn<ImageBlockProps>> {
     const snapshotRet = await super.fromSnapshot(payload);
     const sourceId = snapshotRet.props.sourceId;
-    if (sourceId && !sourceId.startsWith('/'))
+    if (!payload.assets.isEmpty() && sourceId && !sourceId.startsWith('/'))
       await payload.assets.writeToBlob(sourceId);
 
     return snapshotRet;

packages/framework/store/src/transformer/assets.ts

@@ -18,6 +18,10 @@ export class AssetsManager {
     return this._assetsMap;
   }
 
+  isEmpty() {
+    return this._assetsMap.size === 0;
+  }
+
   cleanup() {
     this._assetsMap.clear();
   }