Comment # 1 on bug 1093032 from Martin Vidner

https://build.opensuse.org/package/view_file/openSUSE:Factory/libzypp-plugin-appdata/libzypp-plugin-appdata.changes?expand=1
says:

Fri Apr 20 13:45:17 UTC 2018 - dimstar@opensuse.org

- Drop the post scriptlet attempting to fix boo#1009745: at the
  time this script is executed on a fresh install, the repos are
  not yet setup in the chroot, resulting in the zypper lr call to
  fail and the AS data still not being initialzied.

So I think this has been solved already.

*** This bug has been marked as a duplicate of bug 1009745 ***