$ git clone -n https://src.fedoraproject.org/rpms/liborcus.git /var/lib/mock/f40-build-740419-109670/root/chroot_tmpdir/scmroot/liborcus
Cloning into '/var/lib/mock/f40-build-740419-109670/root/chroot_tmpdir/scmroot/liborcus'...
$ git fetch origin d9995d7b986df2b7aa6d0d11274b28ae65bbd84a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liborcus
 * [new ref]         d9995d7b986df2b7aa6d0d11274b28ae65bbd84a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9995d7 Fix libixion dep