$ git clone -n https://gitee.com/renping000/libffi.git /var/lib/mock/dist-an7_9-updates-build-188132-60696/root/chroot_tmpdir/scmroot/libffi
Cloning into '/var/lib/mock/dist-an7_9-updates-build-188132-60696/root/chroot_tmpdir/scmroot/libffi'...
$ git fetch origin 5ac7270e6c23b882e66f943cd10aeaa0ad685cad:KOJI_FETCH_HEAD
From https://gitee.com/renping000/libffi
 * [new ref]         5ac7270e6c23b882e66f943cd10aeaa0ad685cad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ac7270 add doc package