Hi, many thanks!
Feel free to change, if you know the correct spelling. The documents I use are using this "macrons" at the "real" name (i.e. exported data from geonames.nga.mil - old variant and patially old india survey maps). I do not know, what is the correct spelling only in latin letters, maybe "a" with macron is "aa" or "e" something else in pure latin chars. So what I do, is using this name from source as the "name" tag, but always adding seplleing with only latin at the name:en tag (english).