server: Set correct state after sending INFO_REQUEST (Kbd Interactive)

Signed-off-by: Meng Tan <mtan@wallix.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 4ea46eecce)

src/server.c

@@ -976,6 +976,7 @@ int ssh_message_auth_interactive_request(ssh_message msg, const char *name,
     msg->session->kbdint->prompts = NULL;
     msg->session->kbdint->echo = NULL;
   }
+  msg->session->auth.state = SSH_AUTH_STATE_INFO;
 
   return rc;
 }