create the neotree window by display-buffer-in-side-window
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#197
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display-buffer-in-side-window
prevent the awkward situation that neotree becomes the only window in the emacs and no split can work. Besides, previous attempts usingdefadvice
ondelete-window
anddelete-other-window
is hard to reason.You can test this by using 'C-x 0' on the main window by using the following startup script to check if the awkward moment comes.