$ git clone -n https://gitee.com/guost123/edk2_update.git /var/lib/mock/dist-an23-build-442823-73188/root/chroot_tmpdir/scmroot/edk2_update
Cloning into '/var/lib/mock/dist-an23-build-442823-73188/root/chroot_tmpdir/scmroot/edk2_update'...
$ git fetch origin 04721b5c5af8616b8936a8ed938bff68d17e6aa8:KOJI_FETCH_HEAD
From https://gitee.com/guost123/edk2_update
 * [new ref]         04721b5c5af8616b8936a8ed938bff68d17e6aa8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04721b5 add support for riscv64