Am 2. September 2017 12:03:53 MESZ schrieb Eli Zaretskii <eliz@gnu.org>:

 From: "Rainer Gemulla" <rgemulla@uni-mannheim.de>
 Cc: 28114@debbugs.gnu.org
 Date: Tue, 29 Aug 2017 15:57:56 +0000
 
 Yes, seems to work. Here is what I tried:
 
 (defun plstore-open (file)
    "Create a plstore instance associated with FILE."
    (let* ((filename (file-truename file))
           (buffer (or (find-buffer-visiting filename)
                       (generate-new-buffer (format " plstore %s" 
 filename))))
           (store (plstore--make buffer)))
      (with-current-buffer buffer
        (erase-buffer)
        (condition-case nil
            (let ((coding-system-for-read 'raw-text))
              (insert-file-contents file))
          (error))
        (setq buffer-file-name (file-truename file))
        (set-buffer-modified-p nil)
        (plstore--init-from-buffer store)
        store))))

Thanks, pushed to the master branch, and I'm marking this bug done.