$ git clone -n https://gitee.com/fundawang/libpng.git /var/lib/mock/dist-an23-build-130064-46272/root/chroot_tmpdir/scmroot/libpng
Cloning into '/var/lib/mock/dist-an23-build-130064-46272/root/chroot_tmpdir/scmroot/libpng'...
$ git reset --hard 7ba2420d01e4861be28f9c5893ff5719bf35db03
HEAD is now at 7ba2420 add apng patch