Datalevin datom doesn't support empty function

[cursive-ghost]

Reported in Slack by @simongray here: https://clojurians.slack.com/archives/C0744GXCJ/p1727946413145859

I’m trying out Datalevin. Unfortunately, Cursive won’t let me view the exception I’m getting. Cursive seems to crawl the exception before outputting it, so I get a runtime exception caused by Cursive calling an unsupported method instead of the ex-info I would like, e.g.