$ git clone -n https://src.fedoraproject.org/rpms/liborc.git /var/lib/mock/f40-build-2672620-67528/root/chroot_tmpdir/scmroot/liborc
Cloning into '/var/lib/mock/f40-build-2672620-67528/root/chroot_tmpdir/scmroot/liborc'...
$ git fetch origin 427ad647192772bb71ba94a808a5cde3576363b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liborc
 * [new ref]         427ad647192772bb71ba94a808a5cde3576363b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 427ad64 1.9.3 GA