$ git clone -n https://src.fedoraproject.org/rpms/massif-visualizer.git /var/lib/mock/f41-build-856802-167776/root/chroot_tmpdir/scmroot/massif-visualizer
Cloning into '/var/lib/mock/f41-build-856802-167776/root/chroot_tmpdir/scmroot/massif-visualizer'...
$ git fetch origin 8c1b317581ece392312cf6bf3cd02eb8e76c9ced:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/massif-visualizer
 * [new ref]         8c1b317581ece392312cf6bf3cd02eb8e76c9ced -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c1b317 24.08.2