$ git clone -n https://src.fedoraproject.org/rpms/python-kaitaistruct.git /var/lib/mock/f40-build-2635092-66057/root/chroot_tmpdir/scmroot/python-kaitaistruct
Cloning into '/var/lib/mock/f40-build-2635092-66057/root/chroot_tmpdir/scmroot/python-kaitaistruct'...
$ git fetch origin af99741d9a84636f1c73c3df057b4384ac99ab96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-kaitaistruct
 * [new ref]         af99741d9a84636f1c73c3df057b4384ac99ab96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af99741 Orphaned for 6+ weeks