Multiselect (checkbox) error when placed in Table Layout

If you put a multiselect element with 8-or-less options/forced as a checkbox into a Table layout, you get an error - presumably as it tries to make a label for itself?

The error is around here

getMultiCheckboxHolder: function(controls,label,description) {
var el = document.createElement('div');

label.style.display = 'block';

el.appendChild(label);

label is null when that's called from here

Wrapping the offending lines in "if (label)" seems to work but I thought you might want to knock-up a better solution because I'm probably missing something?