Prefilled form with number 0, breaks the CSS

[0o-de-lally]

When a number 0 is used in an Autoform 'update' document, the normal layout of the form label is not implemented. It is as if the form was "null". So the label is overlaid with the 0. See below.

Using materialize:materialize version 0.97.3

To be clear this does not happen with a plain materialize.css form. Only occurs when using meteor-autoform-materialize.