$ git clone -n https://gitee.com/wenyuzifang/edk2.git /var/lib/mock/dist-an23-build-492685-74562/root/chroot_tmpdir/scmroot/edk2
Cloning into '/var/lib/mock/dist-an23-build-492685-74562/root/chroot_tmpdir/scmroot/edk2'...
$ git fetch origin 2ba98ebca74c2a469656a17e195bd98657ba0e6f:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/edk2
 * [new ref]         2ba98ebca74c2a469656a17e195bd98657ba0e6f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ba98eb Update code from upstream