pyls cannot be initialized if I closed atom with clicking title bar last time

Ok, here is the thing. If I close atom with clicking title bar, next time, when I have to close all files, and re-open them, or I cannot connect to pyls. However if I close atom with cmd+w, then next time all files can automatically connect to pyls.

OS: mac OS and everything is last version.

未指定文件、测试或代码入口点。通过分别从标题栏和使用 cmd+w 关闭 Atom 来复现 macOS 行为，然后跟踪 pyls 的初始化和重新连接；通过这两种路径重新打开后，文件能够连接到 pyls 即表示完成。

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