synproxy doesn't work after upgrading to RELENG_8_0

[Denis Shaposhnikov]

Hello!

After upgrading to RELENG_8_0 I've found next rule doesn't work:

  pass in quick proto tcp to port { http https } flags S/SA synproxy state

but same rule without synproxy works fine:

  pass in quick proto tcp to port { http https }

Is it some well-known problem? Something wrong with synproxy on RELENG_8?

Thanks!