OpenTTD> git log bd80ec7cff2f2186b133ea4bee431cb1a2f1fc95
commit bd80ec7cff2f2186b133ea4bee431cb1a2f1fc95 (tag: 1.11.0, origin/release/1.11)
Author: Patric Stout <xxx>
Date:   Thu Apr 1 13:04:34 2021 +0200

    Fix: [CMake] if the regex for STABLETAG is empty, it means it is stable

    This feels a bit inside out, but it makes sense: if there are no
    "beta1" or "RC1" mentions, it means it is a stable release.

commit 935debbf6f4eb63cbb5be2238fe1cae91c524e73