One more reason to ‘duplicate’ information:

Sometimes, we have names with different pronouncements in the same language. For example:

name = הר אריכה
name:en = Har Arikha
name:en1 = Har Aricha
name:he = הר אריכה
name:he1 = הר אריכא

If we use name:he for the second pronouncement only, and not have name:he1, there will be an unwanted difference between two renderings: one with name:he as primary and name as default, and one with name only.

To avoid this, we need to ‘duplicate’ name and name:he for Hebrew names.