Get the following error when using Course reuse -> Copy course with "Include user data"
++ In order to restore course logs accurately the event "core\event\grade_item_updated" must define the
function get_objectid_mapping(). ++

Get same error on \core\event\section_viewed.

Probably only get this with debug set to Developer, but I think it does mean that log data won't get copied which isn't what I think is intended.

There may be other events I've not identified.