Comment # 2 on bug 1137342 from Andreas Stieger

This is from openSUSE:Leap:15.1/000release-packages. Diff
openSUSE:Leap:15.1/000release-packages/openSUSE-release.spec against the 15.0 
version and you see where this could have been introduced:


+%define betaversion %{nil}
[...]
-VERSION="%{version}%{betaversion}"
+VERSION="%{version}%{?betaversion: %{betaversion}}"
                                   ^
CC release manager and maintenance.

See bug 1104362 on a release package fix was shipped via Maintenance update
last time.