Hi @Alder,
The term-join uses an exact string match, and the city-name with an accent and the city-name without are different. This is why this is failing.
I would consider following work-arounds:
- Do you have an ID-field in your index that you can use to join on? That br_muns.geojson file seems to have a few ID-fields. Are there matching ids in the documents of your index?
- Could you add a field to the features in br_muns.geojson where all special characters are replaced? Here is an example in Javascript to replace accented characters with the unaccented one https://stackoverflow.com/questions/990904/remove-accents-diacritics-in-a-string-in-javascript/37511463#37511463