$ git clone -n https://src.fedoraproject.org/rpms/dnf-repo.git /var/lib/mock/f41-build-841744-161398/root/chroot_tmpdir/scmroot/dnf-repo
Cloning into '/var/lib/mock/f41-build-841744-161398/root/chroot_tmpdir/scmroot/dnf-repo'...
$ git fetch origin 3e242160f3fee97ced0566c9fe4ce2b86cb4352e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnf-repo
 * [new ref]         3e242160f3fee97ced0566c9fe4ce2b86cb4352e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e24216 cabal-rpm-2.2.1 still uses %bcond_with