$ git clone -n https://gitee.com/gcdota930915/gtk3.git /var/lib/mock/dist-an8.7-build-170761-58930/root/chroot_tmpdir/scmroot/gtk3
Cloning into '/var/lib/mock/dist-an8.7-build-170761-58930/root/chroot_tmpdir/scmroot/gtk3'...
$ git reset --hard origin/a8
HEAD is now at fbd9683 Add doc sub pack