The 0.18 release of x11/sddm contains a fix for a security error
that allows unlocking a session without a password, if the
ReuseSession configuration option is set to true. The default
configuration sets it to false.

I'm setting the version to < 0.17.0_1 here, because I'm going
to update 0.17 with backports rather than pull in 0.18 (there's
a lot more work in that update, because of reorganisation upstream
and none of our patches apply anymore).

PR: 230029
Reported by: doctorwhoguy@gmail.com