$ git clone -n https://src.fedoraproject.org/rpms/atinject.git /var/lib/mock/f40-build-2208712-52141/root/chroot_tmpdir/scmroot/atinject
Cloning into '/var/lib/mock/f40-build-2208712-52141/root/chroot_tmpdir/scmroot/atinject'...
$ git fetch origin 24cff6ae25aad06b54dd6af7920c21b0f790b552:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/atinject
 * [new ref]         24cff6ae25aad06b54dd6af7920c21b0f790b552 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24cff6a Get rid of module_prefix macro