$ git clone -n https://src.fedoraproject.org/rpms/AcetoneISO.git /var/lib/mock/f41-build-side-1-2630183-25598/root/chroot_tmpdir/scmroot/AcetoneISO
Cloning into '/var/lib/mock/f41-build-side-1-2630183-25598/root/chroot_tmpdir/scmroot/AcetoneISO'...
$ git fetch origin 00b42c2a0ecfe374e75c5e635d051cac44841cd2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/AcetoneISO
 * [new ref]         00b42c2a0ecfe374e75c5e635d051cac44841cd2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00b42c2 convert GPLv2+ license to SPDX