popupwin broke with-temp-buffer body commands context

[proofit404]

Here is my test .emacs file:

(require 'cl)
(add-to-list 'load-path "~/.emacs.d/repository/popwin-el")
(require 'popwin)
(setq display-buffer-function 'popwin:display-buffer)
(dolist (buff '("*Buffer List*" "*Process List*" "*Async Shell Command*"))
  (pushnew buff popwin:special-display-config :test #'equal))

Now launch emacs and open some file with C-xC-f

~/my_rails_blog_example/app/view/layouts/application.html.erb

Then eval following emacs lisp code with M-:

(with-temp-buffer
  (cd "~/my_rails_blog_example")
  (async-shell-command "rails s"))

This'll result into running rail server in popup window with focus sets to it. Now kill running command via C-cC-c and eval lisp code above ones again from the Async Shell Command buffer. Its change default dirrentory in application.html.erb buffer instead of current and change its mode into Shell:no process. This meens that popupwin broke with-temp-buffer command context and switch current buffer into application.html.erb back.