$ git clone -n https://gitee.com/yangxiaojuan-loongson/mesa.git /var/lib/mock/dist-an23-build-324012-68521/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/dist-an23-build-324012-68521/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin de60b13b33261a3dff3ebe26315616f0de2d0f83:KOJI_FETCH_HEAD
From https://gitee.com/yangxiaojuan-loongson/mesa
 * [new ref]         de60b13b33261a3dff3ebe26315616f0de2d0f83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de60b13 Add loongarch64 support