3 Switzerland entries have a trailing comma in their alternate country code (CH,):
2661349 Buchs
7285374 Buchs (SG)
7303718 Guscha
Can the comma be eliminated? Ignoring it makes the import to postgres as array (embed in {}) a little complicated.
Dealing with the alternate country codes I was wondering why about 200 thousand entries exist with their alternate country code being exactly their normal country code, while all other entries (except those with a different or with multiple alternate codes) just have a null value? Just in case there is a special reason for that I would like to know!