$ git clone -n https://gitee.com/guost123/edk2_update.git /var/lib/mock/dist-an23-build-442902-73188/root/chroot_tmpdir/scmroot/edk2_update
Cloning into '/var/lib/mock/dist-an23-build-442902-73188/root/chroot_tmpdir/scmroot/edk2_update'...
$ git fetch origin 7caa0e10060b99b7022c37a51ae7780a0faab815:KOJI_FETCH_HEAD
From https://gitee.com/guost123/edk2_update
 * [new ref]         7caa0e10060b99b7022c37a51ae7780a0faab815 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7caa0e1 add support for riscv64