Query not taking into account fuzziness after upgrading from Examine 1.2.2.0 to 3.3.0.0

[cian-evans]

We have an Umbraco v8 site which has been upgraded to Umbraco v13 recently, and we've noticed that the search results are quite different.

After inspecting the query that is created in V8 and V13, it looks like the fuzziness is only applied to the first search term, however this is set to 1 rather than 0.9:

v13
Query = {+(subTitle_cy:designated~1 subTitle_cy:sites~0 subTitle_en:designated~1 subTitle_en:sites~0 title_cy:designated~1 title_cy:sites~0 title_en:designated~1 title_en:sites~0)}

v8
Query = {+(subTitle_cy:designated~0.9 subTitle_en:designated~0.9 title_cy:designated~0.9 title_en:designated~0.9) (subTitle_cy:sites~0.9 subTitle_en:sites~0.9 title_cy:sites~0.9 title_en:sites~0.9)}

Here is the relevant code for when the IBooleanOperation is built:

var searchFuzzyness = 0.9f;
if (!searchTerm.Contains(" ")) return criteria.GroupedOr(textFields, searchTerm.Fuzzy(searchFuzzyness));

string[] terms = searchTerm.Split(' ');
var result = criteria.GroupedOr(textFields, terms[0].Fuzzy(searchFuzzyness));

for (int i = 1; i < terms.Length; i++)
{
    ;
    result.Or().GroupedOr(textFields, terms[i].Fuzzy(searchFuzzyness));
}
criteria.GroupedOr(textFields, terms[0].Fuzzy(searchFuzzyness));

return result;

If we inspect the IExamineValues after adding the fuzziness, we can see that the value is set correctly:

{Examine.Search.ExamineValue} Examineness: Fuzzy Level: 0.9 Value: "sites"

However once the "GroupedOr" is executed it them seems to disregard this and results in the query result above.

[Shazwazza]

Interesting. We have a lot of test cases covering most things. Perhaps this is one that isn't covered but I'd have to check.

Tests are here: https://github.com/Shazwazza/Examine/blob/support/3.x/src/Examine.Test/Examine.Lucene/Search/FluentApiTests.cs
It is easy to fork this repo and write a test if you have time to help contribute on branch support/3.x