zone:maxspeed = FR:30 / fr:30

Hi folks, I had a look at the usage of zone:maxspeed at https://taginfo.openstreetmap.org/keys/?key=zone%3Amaxspeed#values and I noticed that both FR:30 and fr:30 are used. The usage of “FR:30” is the documented and most used, see https://taginfo.openstreetmap.org/tags/zone%3Amaxspeed=FR%3A30#chronology . The (incorrect) usage of fr:30 seems to have started this year: https://taginfo.openstreetmap.org/tags/zone%3Amaxspeed=fr%3A30#chronology . Should probably be fixed? I also noticed that ID suggests “fr:30” instead of “FR:30”. No idea how to get that fixed.

One more value
https://taginfo.openstreetmap.org/tags/zone%3Amaxspeed=fr%3Azone30