This is what it looks like for me, both before and after.

> I see in the implementation of org-toggle-pretty-entities that it calls
> decompose-region, which does not seem to do anything when called from
> M-: either. I don't know if it's bug in org-mode or Emacs itself.

That's...  an odd thing to do.  I mean, using `decompose-region'.  I'm
not even sure what it's supposed to do.  Eli?

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