Has anyone every encountered a problem where org-mode goes into some
modify loop in emacs?

I am having a problem that when I expand some subtree (with TAB), the
buffer gets modified, and emacs seems to go into a loop.  If I save
the buffer, it immediately gets modified again (the ** shows up in the
modeline).  Switching to another buffer seems to break it out of this
loop.

I've attached an org file that I encounter this problem on.