TypeError: Return value of think\\db\\PDOConnection::pdoQuery() must be of the type array, bool returned in

webman使用think-orm和think-cache
使用db的链式方法cache进行查询例如:
model::where([xxx,xxx])->cache(true,60)->find();
会报错

TypeError: Return value of think\\db\\PDOConnection::pdoQuery() must be of the type array, bool returned in ....

就是下面这个方法里面$data,当从缓存里面查询不到数据时候,变量值不只是null

/**
     * 执行查询 返回数据集
     * @access protected
     * @param BaseQuery $query  查询对象
     * @param mixed     $sql    sql指令
     * @param array     $bind   参数绑定
     * @param bool      $master 主库读取
     * @return array
     * @throws DbException
     */
    protected function pdoQuery(BaseQuery $query, $sql, array $bind = [], bool $master = null): array
    {
        // 分析查询表达式
        $query->parseOptions();

        if ($query->getOptions('cache')) {
            // 检查查询缓存
            $cacheItem = $this->parseCache($query, $query->getOptions('cache'));
            $key       = $cacheItem->getKey();

            $data = $this->cache->get($key);
           // 当从缓存里面查询不到数据时候,$data值不只是null,还可能是false,只判断null会造成报错
            if (null !== $data) {
                return $data;
            }
        }

Start by locating PDOConnection::pdoQuery() and inspect the cache lookup through $this->cache->get($key), especially the behavior when no cached data exists. Verify the cache-miss path with a chained query using cache(true, 60); done means a missing cache entry no longer causes the declared array return type to receive false.