$ git clone -n https://gitee.com/mgb01105731/libxml2.git /var/lib/mock/dist-an23-build-139207-51771/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an23-build-139207-51771/root/chroot_tmpdir/scmroot/libxml2'...
$ git reset --hard c9e1b653c669e6875ea1ef1461ece06b027dffb0
HEAD is now at c9e1b65  optimise spec file