[stunnel-users] s_ssl_read_eof: SSL_ERROR_WANT_READ: Retrying

Hello, i've encountered a very strange issue when you use stunnel 7.53 (doesn't matter actually, happens in 5.68 as well) like this: [server] accept = 443 protocol = socks

[client] accept = 1080 protocol = socks connect = server:443

with iptables -A OUTPUT -p tcp -d 10.8.0.1 -j REDIRECT --to-ports 1080, I see in 95% cases in logs for every request from curl: curl http://10.8.0.1 (server's internal IP), however, it never happens if you use client like this:

[client] accept = 1080 connect = server:443

and curl -x socks5://127.0.0.1:1080 http://10.8.0.1 (internal server's IP).

Technically it affects nothing, but I still guess there's a small time overhead due to retry. Maybe i'm wrong. Please advise. Thanks.