$ git clone -n https://src.fedoraproject.org/rpms/kf6-kauth.git /var/lib/mock/f41-build-side-1-2647334-27301/root/chroot_tmpdir/scmroot/kf6-kauth
Cloning into '/var/lib/mock/f41-build-side-1-2647334-27301/root/chroot_tmpdir/scmroot/kf6-kauth'...
$ git fetch origin a8104f7f33817008316c5f465bc25b28a8562fed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kauth
 * [new ref]         a8104f7f33817008316c5f465bc25b28a8562fed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8104f7 6.5.0