$ git clone -n https://src.fedoraproject.org/rpms/iguanaIR.git /var/lib/mock/f41-build-side-1-2642473-26798/root/chroot_tmpdir/scmroot/iguanaIR
Cloning into '/var/lib/mock/f41-build-side-1-2642473-26798/root/chroot_tmpdir/scmroot/iguanaIR'...
$ git fetch origin f8d5981bb12607aa6f3fd21a46f6bf588f791c8b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/iguanaIR
 * [new ref]         f8d5981bb12607aa6f3fd21a46f6bf588f791c8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8d5981 convert license to SPDX