I have a org-mode extension:
https://github.com/stardiviner/org-link-beautify/blob/master/org-link-beautify.el#L71

It will beautify links with text-properties.

When I toggle org-log-mode and related options in org-agenda buffer. I
found my org-link-beautify will caused long time suspend and no stop. After
debug, I found org-link-beautify text-property caused this problem.

I want to get around this problem. So need to know how to detect currently
in logbook drawer or something else which used to record clocking note,
`org-add-note`, etc.

Or maybe org-agenda upstream can do something to work around this
text-properties issue?

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