We can: https://github.com/fax4ever/lucene-play/pull/1

I wrote the test with CustomAnalyzer to show that it can be done, but we don't have to switch to that.
I think just overriding .normalize in org.hibernate.search.backend.lucene.analysis.impl.TokenizerChain and implementing it properly would do the trick.

Maybe one day we can switch to custom analyzer, but that's out of scope and would require more extensive changes.