When are idle connections closed with HAProxy 2.0 with http-reuse safe

Hi,

I am using HAProxy 2.0.9 with http-reuse safe and according to the documentation, after 5 seconds half of the idle connections are closed. But contrary to that, according to my observation, server connections opened by a session are getting closed 5 seconds after the client connection’s FIN is sent.

Am I missing something?