For the past couple of weeks I'm finding that both M-RET and C-RET turn the line under point into a heading, instead of inserting a new heading elsewhere. This happens with `org-M-RET-may-split-line' set to anything.
So this: #+begin_src org * Chapter One :PROPERTIES: :some_prop: t :END: In which not [point is here] very much happens. But this is a further test to see what happens on multiline text. #+end_src becomes: #+begin_src org * Chapter One :PROPERTIES: :some_prop: t :END: * In which not very much happens. But this is a further test to see what happens on multiline text. #+end_src This also happens with emacs -Q. Has no one else seen this? Thanks, Eric