$ git clone -n https://gitee.com/alpha-wang/edk2.git /var/lib/mock/dist-an23-build-443277-73188/root/chroot_tmpdir/scmroot/edk2
Cloning into '/var/lib/mock/dist-an23-build-443277-73188/root/chroot_tmpdir/scmroot/edk2'...
$ git fetch origin 5040f189f861b5556df66067e5c0a7ebd653fc36:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/edk2
 * [new ref]         5040f189f861b5556df66067e5c0a7ebd653fc36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5040f18 update edk2.spec.