无法正常启动客户端 - 内核连接中断

安装应用后打开过一次，切换 workspace 目录为 dropbox 之后就无法启动了，报错如上。

具体的启动日志如下：

  ____    _  __   __
 / ___|  (_) \ \ / /  _   _    __ _   _ __
 \___ \  | |  \ V /  | | | |  / _` | | '_ \
  ___) | | |   | |   | |_| | | (_| | | | | |
 |____/  |_|   |_|    \__,_|  \__,_| |_| |_|
I 2021/06/18 21:59:34 working.go:97: kernel is booting:
    * ver [1.2.0-beta8]
    * runtime mode [prod]
    * workspace directory [E:\Dropbox\应用\SiYuan]
    * working directory [C:\Users\KChen\AppData\Local\Programs\SiYuan\resources]
    * temp directory [C:\Users\KChen\AppData\Local\Temp\siyuan]
    * system temp directory [C:\WINDOWS\Temp\siyuan]
    * rsync directory [C:\Users\KChen\AppData\Local\Programs\SiYuan\resources\rsync]
    * read only [false]
    * container [std]
    * resident [true]
    * arch [amd64]
E 2021/06/18 21:59:34 conf.go:63: create [windowState.json] failed: rename E:\Dropbox\应用\SiYuan\conf\windowState.json058782010 E:\Dropbox\应用\SiYuan\conf\windowState.json: The process cannot access the file because it is being used by another process.
I 2021/06/18 21:59:34 conf.go:219: local serve path [http://192.168.1.106:6806]
I 2021/06/18 21:59:34 database.go:97: reinitialized database [C:\Users\KChen\AppData\Local\Temp\siyuan\siyuan.db]
I 2021/06/18 21:59:34 serve.go:50: kernel HTTP server is booting [http://0.0.0.0:6806]
I 2021/06/18 21:59:40 working.go:122: kernel booted
F 2021/06/18 21:59:42 conf.go:302: write conf [E:\Dropbox\应用\SiYuan\conf\conf.json] failed: rename E:\Dropbox\应用\SiYuan\conf\conf.json235624994 E:\Dropbox\应用\SiYuan\conf\conf.json: The process cannot access the file because it is being used by another process.

目前猜测如下：

1. 启动后创建临时文件 jsonxxxxxx
2. dropbox 开始同步文件
3. 思源尝试 rename 文件失败，阻塞