How do I stop all the sub-branches being expanded after an HTML map is filtered?

It is good now that during the filtering of an HTML map, it is possible to set it so that all the sub-topics are not hidden when the parent topic matches the filtering criteria. eg in the attached screenshot in my events listing map the talks that are tagged with the 'Generative AI' Topic Info Tag. However why does the map not remain in the same state of expansion after the filtering operation, why does it then 'expand all' so all the subtopics, which were collapsed, are now visible?

In this instance none of the sub-topics - which are all Speakers giving the talks - have any tags attached at all and so do not match the filter criteria. It is very discombobulating (ie. confusing) for the end user to suddenly be presented with extra levels of information that weren't visible before. I publish large maps with potentially many 'layers' and so I deliberately manage the state of collapse so branches expand in the way that I want (eg. all levels at once rather than level by level (click by click)).

In MindManager sub-branches remain in the same state of expansion after filtering a map, why is it not the same behaviour in HTML maps? Or am I missing a setting somewhere?

This is the link t the published file so you can have a play yourself - https://share.mindmanager.com/?mm_link_external=true#publish/8LtLAy8C9K6SpgvzmSJyNXrVmoKnpUWItEtu_lSL