$ git clone -n https://src.fedoraproject.org/rpms/did.git /var/lib/mock/f41-build-side-1-2817253-32985/root/chroot_tmpdir/scmroot/did
Cloning into '/var/lib/mock/f41-build-side-1-2817253-32985/root/chroot_tmpdir/scmroot/did'...
$ git fetch origin 3fdcbd4b76b9120394de99767d37248b5e7a275b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/did
 * [new ref]         3fdcbd4b76b9120394de99767d37248b5e7a275b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3fdcbd4 convert GPLv2+ license to SPDX