How can I get Unicode implementations to recognize the digraph more generally?
The Unicode CLDR project provides mechanisms that many software packages use to support the requirements of different languages. If the digraph sorts differently than the two separate characters, then it can be added to a collation table for the language. If the digraph needs to be listed separately, such as in an index, then it can be added to the exemplar characters. To request such a change, first look at the CLDR to determine if it is not already done, and file a change request if needed.
