Nginx Config Ipv6 default route allow http access?

[Ramalama]

geo $is_remote {
default 1;
192.168.0.0/16 0;
172.16.0.0/12 0;
10.0.0.0/8 0;
127.0.0.1 0;
::0/0 0;
}

if ($scheme = 'http'){
set $block_remote "1";
}
if ($is_remote){
set $block_remote "${block_remote}+1";
}
if ($block_remote = "1+1"){
return 403;
}

I searched and didn't found an answer to this, for me this is looking like a mistake or something.

::0/0 on ip6 is for me the equivalent for 0.0.0.0/0 on ip4
So for me that means that that block says, that every ipv6 adress is not counted as remote, so further down not getting redirected to 403.

Shouldn't that be fc00::/7 (rfc1918) and ::1/128 (link local)?

Cheers