$ git clone -n https://src.fedoraproject.org/rpms/warzone2100.git /var/lib/mock/f38-build-side-42-init-devel-761506-27703/root/chroot_tmpdir/scmroot/warzone2100
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-761506-27703/root/chroot_tmpdir/scmroot/warzone2100'...
$ git fetch origin 1ee922fe7d25371fdb578c37000f06faf5c0b65d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/warzone2100
 * [new ref]         1ee922fe7d25371fdb578c37000f06faf5c0b65d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ee922f Fix FTBFS (rhbz#2171756)