Lucene Examine search with and without diacritics

We are using Umbraco 8 and Umbraco 10 on two different projects.
DefaultAnalyzer’s internal index is CultureInvariantWhitespaceAnalyzer
DefaultAnalyzer’s external index is StandardAnalyzer

Both projects have the same configuration, but the search behavior is different

  • Umbraco 8 - searches with and without diacritics find the same results.
  • Umbraco 10 - gives search results only for words with diacritics used. When we use the same words but without diacritics, the search result is empty.

Why the search results are different on Umbraco 8 an Umbraco 10?
Is it a different version of Lucene Examine?

How to configure Umbraco 10?

I want the same search behavior as Umbraco 8 has.
I need the search results to be the same with and without diacritics, as Umbraco 8 can do.

Thank you for your help


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/112894-lucene-examine-search-with-and-without-diacritics