[O] Changing Modes and Headline Closing

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Hello,

I'm editing a large document, mostly text, that is intended for a
website -- thus html is interspersed throughout, though not enough to
justify editing the document as a dedicated .html file.

I only use html-mode if I have to edit a list with 6-7 uls / ols nested
in, mainly to keep track of the position of each li. This is fine, but
when I switch back to org-mode everything collapses back to the
top-level headline. My workaround is to kill-buffer and re-open rather
than M-x org-mode out of html-mode.

Is there a way to switch back to org-mode via M-x org-mode while
preserving the state of the open / closed headlines?

Thanks,

John