'set_real_ip_from' in location section is not processed before REWRITE_PHASE

[p01arbear@…]

For the confuguration

    server {
        listen 1024 proxy_protocol;
        location / {
            real_ip_header proxy_protocol;
            set_real_ip_from 0.0.0.0/0;
            return 200 remote_addr=$remote_addr;
        }       
    } 

response on request

echo -en "PROXY TCP4 4.4.4.4 5.5.5.5 1234 80\r\nGET / \n\n" | nc -q-1 0 1024

is

remote_addr=127.0.0.1

It is wrong address. The same in the access log.

Moving real_ip* directives into the server section or removing 'return' provide the correct behaviour.

    server {
        listen 1024 proxy_protocol;
        real_ip_header proxy_protocol;
        set_real_ip_from 0.0.0.0/0;
        location / {
            return 200 remote_addr=$remote_addr;
        }       
    } 

remote_addr=4.4.4.4

This happens due to missing call of ngx_http_realip_handler() with config of a location on PREACCESS_PHASE.
Because 'return' is works off on REWRITE_PHASE.