$ git clone -n https://src.fedoraproject.org/rpms/liborc.git /var/lib/mock/f45-build-16710-490/root/chroot_tmpdir/scmroot/liborc
Cloning into '/var/lib/mock/f45-build-16710-490/root/chroot_tmpdir/scmroot/liborc'...
$ git fetch origin b0d7739a61ca0429ab73d7f77c096fd80086f228:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liborc
 * [new ref]         b0d7739a61ca0429ab73d7f77c096fd80086f228 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0d7739 rebuild w/ thrift-0.24.0, f45-build-side-146163