$ git clone -n https://src.fedoraproject.org/rpms/will-crash.git /var/lib/mock/f41-build-side-1-2810749-32917/root/chroot_tmpdir/scmroot/will-crash
Cloning into '/var/lib/mock/f41-build-side-1-2810749-32917/root/chroot_tmpdir/scmroot/will-crash'...
$ git fetch origin ba47edf85280149d48083d3ddcb695a5587d8270:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/will-crash
 * [new ref]         ba47edf85280149d48083d3ddcb695a5587d8270 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba47edf Orphaned for 6+ weeks