Ability to search non-english (especially Scandinavian) characters in local data and CDI data in a consistent way
A growing number of Central Discovery Index (CDI) sources contain the original non-english characters for specific languages, e.g. Scandinavian (Danish, Norwegian, Swedish) letters such as æ,ä, ø, ö and å. Searching the original Scandinavian letters works for both local and CDI data. However, searching non-English letters are cumbersome for foreign users. There are different ways to anglicize these characters. The traditional Scandinavian way is to use a "folded variant": "ä" -> "ae", "ö" -> "oe", etc. However, this only works for local data (institution zone). CDI use the method of simply removing the dots: "ä" -> "a", "ö" -> "o", etc. These two different ways of indexing Scandinavian letters leads to inconsistent searching.
We would like to be able to search for Scandinavian characters in a consistent way for local data as well as CDI data.

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Manu Schwendener commented
Same problem for German. We need the local data to be set to
"ä" -> "ae", "ö" -> "oe", "ü" -> ue.Same should be possible for CDI.