$ git clone -n https://gitee.com/mgb01105731/libva_1.git /var/lib/mock/dist-an23-build-139463-51771/root/chroot_tmpdir/scmroot/libva_1
Cloning into '/var/lib/mock/dist-an23-build-139463-51771/root/chroot_tmpdir/scmroot/libva_1'...
$ git reset --hard ab86b6b25d1f18cfe648cba439a10e86f0f278e6
HEAD is now at ab86b6b optimise spec file & add doc package