Two domains and multiple server blocks

[Jamesadamar]

They are not wrong, look here:
http://nginx.org/en/docs/http/server_names.html

A special wildcard name in the form “.example.org” can be used to match both
the exact name “example.org” and the wildcard name “*.example.org”. 

You should know your own documentation. If it would be wrong, 3.jgkp.de
wouldn't work as it did.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,276031,276033#msg-276033