NumberTextBox.isValid does not work with trim

[xmedeko]

I have

<input data-dojo-type="dijit/form/NumberTextBox" data-dojo-props="constraints:{min:0,max:20,places:0}, intermediateChanges:true, trim:true"/>

and check in the code

numberTextBox.on("change", () => {
    okButton.set("disabled", numberTextBox.isValid());
});

This does not work when user enters a number with spaces, e.g. " 12 ". The checkbox show no error, but numberTextBox.isValid() returns false. I.e. if isValid() checks text value, it should do filter first.

Update: Workaround is to call NumberTextBox._setBlurValue() on change:

numberTextBox.on("change", () => {
    numberTextBox._setBlurValue();
    okButton.set("disabled", numberTextBox.isValid());
});