Turns out, we hit something as new as last week: https://github.com/google/gson/issues/2295

JSON lib devs are struggling to figure out a standard to escape or not escape \u2028 and \u2029

#[4] we need to clarify how to escape the String of content in NIP-01 before the string is converted to bytes using UTF-8 and then hashed. Which characters get escaped and which ones don't