$ git clone -n https://src.fedoraproject.org/rpms/qcad.git /var/lib/mock/f41-build-854884-166994/root/chroot_tmpdir/scmroot/qcad
Cloning into '/var/lib/mock/f41-build-854884-166994/root/chroot_tmpdir/scmroot/qcad'...
$ git fetch origin d2cf54f2991662e6a9aeb5b38273f79ac97df0a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qcad
 * [new ref]         d2cf54f2991662e6a9aeb5b38273f79ac97df0a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2cf54f Release 3.31.0