$ git clone -n https://gitee.com/guost123/edk2_update.git /var/lib/mock/dist-an23-build-442208-73171/root/chroot_tmpdir/scmroot/edk2_update
Cloning into '/var/lib/mock/dist-an23-build-442208-73171/root/chroot_tmpdir/scmroot/edk2_update'...
$ git fetch origin 22dd1eb418db54d704a4dc7bc0a4f7a0f8e1f91b:KOJI_FETCH_HEAD
From https://gitee.com/guost123/edk2_update
 * [new ref]         22dd1eb418db54d704a4dc7bc0a4f7a0f8e1f91b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22dd1eb add support for riscv64