$ git clone -n https://gitee.com/zhoujiajia111/edk2.git /var/lib/mock/dist-an23-build-463415-73836/root/chroot_tmpdir/scmroot/edk2
Cloning into '/var/lib/mock/dist-an23-build-463415-73836/root/chroot_tmpdir/scmroot/edk2'...
$ git fetch origin 717174f967eccdb169685816491c85d880654be5:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/edk2
 * [new ref]         717174f967eccdb169685816491c85d880654be5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 717174f update Source2