No, it should have said that the roundtrip should be avoided. That is what I have been not happy about, see previous comments :)

For some constructive proposal, please consider using '''OdfCanvas.setOdfContainer''' instead.
```
        // save for convenient debugging
        odfContainer.saveAs(path, function () {
            t.odfCanvas.addListener("statereadychange", handler);
            t.odfCanvas.setOdfContainer(odfContainer);
        });
```
Works here.