Set-window-point in append-to-buffer

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Set-window-point in append-to-buffer

From:	Steve Schooler
Subject:	Set-window-point in append-to-buffer
Date:	Mon, 20 Apr 2015 16:25:33 -0700

The append-to-buffer function's definition ends with:

(dolist (window windows)
  (when (= (window-point window) point)
    (set-window-point window (point))))))))

What is the purpose of this?  Experimenting, I commented out this code and
re-ran, but could detect no difference in functionality?

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