@pmor I believe all countries should have the iso_short_name and iso_short_name_lower_case fields, and both fields should be copy-pasted of their ISO representation.

Please consider the UPPERCASE form of a country ISO short name may be different from the lowercase form of it. For example, Turkey ISO short names are different in both forms. (It's different in the i character in both forms that it's unicode is not convertible in many PLs).

I want you to please use iso_short_name and iso_short_name_lower_case exactly the same as it is indicated in the ISO website; these are identifiers. iso_short_name should be the UPPERCASE form, and the iso_short_name_lower_case should be the lowercase form.

Some may experience regression in their data, but we shall have the correct data.

Please consider that based on the ISO data reference (sample), we need to keep the iso_short_name field and data as it is and just add another field for iso_short_name_uppercase for all countries.

At this time, I'm adding iso_short_name_lower_case to contain the changes from #907 and reverting iso_short_name to its previous values.

I will look into the uppercase field at a later date, and then make plans for a deprecation of iso_short_name with ample time given before the actual switch to uppercased data