Public annex page does not show updated content

Since a couple of weeks it seems that synchronization with the public annex does not end with an updated page on annex.softwareheritage.org Today, I added talks/2021/2021-10-21-IRD.pdf , git annex sync --content succeeded with no error, but 2021-10-21-IRD.pdf does not show up on https://annex.softwareheritage.org/public/talks/2021/

May you fix this?

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Migrated from T3682 (view on Phabricator)