$ git clone -n https://src.fedoraproject.org/rpms/qm-dsp.git /var/lib/mock/f41-build-side-1-2662564-28815/root/chroot_tmpdir/scmroot/qm-dsp
Cloning into '/var/lib/mock/f41-build-side-1-2662564-28815/root/chroot_tmpdir/scmroot/qm-dsp'...
$ git fetch origin 85229142fad5052c7911366a8a73f36d6d515a13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qm-dsp
 * [new ref]         85229142fad5052c7911366a8a73f36d6d515a13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8522914 convert GPLv2+ license to SPDX