[O] [BUG] Error running timer ‘org-element--cache-sync’: (wrong-type-argument hash-table-p nil)

[tumashu]

1. GNU Emacs 25.0.95.1 (i686-w64-mingw32) of 2016-06-13
2. org-20160704


#+BEGIN_COMMENT
(let ((buffer-name "*Test*"))
  (with-output-to-temp-buffer buffer-name
    (set-buffer buffer-name)
    (when (featurep 'org)
      (org-mode))
    (setq truncate-lines 1)
    (setq cursor-type nil)
    (insert "This is a test")))
#+END_COMMENT

The debug info:

#+BEGIN_COMMENT
Debugger entered--Lisp error: (wrong-type-argument hash-table-p nil)
  clrhash(nil)
  org-element--cache-sync(#<buffer *Show-font-effect*>)
  apply(org-element--cache-sync #<buffer *Show-font-effect*>)
  timer-event-handler([t 0 0 599999 nil org-element--cache-sync (#<buffer *Show-font-effect*>) idle 999999])
Debugger entered--Lisp error: (wrong-type-argument hash-table-p nil)
  clrhash(nil)
  org-element--cache-sync(#<buffer *Show-font-effect*>)
  apply(org-element--cache-sync #<buffer *Show-font-effect*>)
  timer-event-handler([t 0 0 599999 nil org-element--cache-sync (#<buffer *Show-font-effect*>) idle 999999])

#+END_COMMENT