$ git clone -n https://gitee.com/src-anolis-os/libpng15 /var/lib/mock/dist-an8.7-build-139213-51893/root/chroot_tmpdir/scmroot/libpng15
Cloning into '/var/lib/mock/dist-an8.7-build-139213-51893/root/chroot_tmpdir/scmroot/libpng15'...
$ git reset --hard origin/a8
HEAD is now at 9fb57a0 spec: add doc sub package