PouchDB find 方法不返回文档

Question

在复制的同时，我运行查找查询。但是当第一次加载页面时，该方法返回 0 个文档。如果您在大约 5 秒后重新加载页面，该方法将返回所有文档

public createIndex = async (): Promise<unknown> => {
    try {
      return await this.database.createIndex({
        index: {
          fields: ['title']
        }
      });
    } catch (e) {
      ErrorHandler.processError(e);

      return null;
    }
  };

public find = async (
    userId: string,
  ): Promise<any> => {
    try {
      return await this.database.find({
        selector: {
          $or: [
            {author: userId},
            {writers: {$regex: userId}},
            {readers: {$regex: userId}},
          ],
          $and: [
            {title: {$gt: null}}
          ],
          $not: [
            {_delete: true}
          ],
        },
        sort: [{title: "asc"}],
        fields: ["_id", "_rev", "id", "title", "created", "modified", "sharedUI", "author", "writers", "readers", "preview"],
      })
    } catch (e) {
      ErrorHandler.processError(e);

      return null;
    }
  };

React.useEffect(() => {
    const storage = new Database('schemes', {username: 'username', password: 'username'});
    storage.createIndex().then(() => {
      storage.find(userId).then((resFind) => {
        console.log('resFind', resFind)
     })
    })

}, [userId]);