$ git clone -n https://gitee.com/little-huaduo/clang.git /var/lib/mock/dist-an23.3-build-434521-73067/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/dist-an23.3-build-434521-73067/root/chroot_tmpdir/scmroot/clang'...
$ git fetch origin 87afebb0ebd764fe42d9b226412012c232486334:KOJI_FETCH_HEAD
From https://gitee.com/little-huaduo/clang
 * [new ref]         87afebb0ebd764fe42d9b226412012c232486334 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87afebb Add Sw64 support for clang