[sr-dev] [kamailio/kamailio] Segmentation fault when using http_hdr with http_async_client (#760)

While using httpa_sync_client, I'm trying to retrieve the Content-Type of the body I got in a 200OK after an HTTP get using $var(my_content_type) =$ http_hdr(Content-Type); Then When I launch Kamailio, I get a seg fault at the configuration file validation step because in http_async_client_mod.c the line 'return pv_api.parse_hdr_name(sp, in)' is trying to use parse_hdr_name before it being initialized. I noticed that when I remove my previous line, the initialization is done but after the configuration file validation. Any idea if I'm doing something wrong?