It looks like they will go the messy route in German. (More likely they already have. I’m not even sure whether they were ever using gender appropriate language in the first place.)

Here is how that looks: „Fügen Sie hier eine kleine Beschreibung über sich ein, damit andere wissen, dass sie die/den richtige/n Name erwischt haben.“ (“Put a little about yourself here so people know they've found the correct Name.”)

See those slashes at the end? They just write both and separate the two variants with slashes. An ugly and common solution, I’m not aware of any better solutions in German, though.