$ git clone -n https://src.fedoraproject.org/rpms/kf5-kblog.git /var/lib/mock/f38-build-side-42-init-devel-590383-26120/root/chroot_tmpdir/scmroot/kf5-kblog
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-590383-26120/root/chroot_tmpdir/scmroot/kf5-kblog'...
$ git fetch origin b6760177489770ca089ef24e598942bc15ea8e66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kblog
 * [new ref]         b6760177489770ca089ef24e598942bc15ea8e66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b676017 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild