waiting for keypress after screen -RR

Hi,

I use screen -RR on a remote server -- most of the time there is no
existing session, so it displays "New screen..." and waits for a key to
be pressed.

How can I avoid this -- ie make it go directly to the new session
without waiting for me to OK the message?

screen 4.3.1-2build1, Ubuntu 16.04.

.screenrc:
escape ^Zz
startup_message off
shell /usr/bin/zsh

Best,

Tamas