[O] end-of-defun odd behaviour in org mode

[Leo Liu]

Hi there,

While adding support for org-mode in easy-kill¹ I have discovered C-M-a
and C-M-e work asymmetrically. C-M-e moves forward 2 headlines while
C-M-a move back 1.

Cheers,
Leo

Footnotes: 
¹  https://github.com/leoliu/easy-kill