I have been informed that the iD editor fetches the name from the wikidata linked and locks the name field in the editor. To bypass this simply scroll down to the tags field and change the name value there 

https://cdn.discordapp.com/attachments/763192797775265864/1199995459368915004/image.png
https://cdn.discordapp.com/attachments/763192797775265864/1199995459909992548/image.png