'required': true marked under layout still allows you to submit form without filling required field

[sunnydsouza]

I was looking at your playground example
https://hamidihamza.com/ajsf/?set=asf&example=asf-hack-conditional-required&framework=material-design&language=en
I can see that under 'layout' ('form') we have

"switch",
{
"key": "email",
"condition": "model.switch",
"required": true
},

So, email is marked required in the layout, but after check marking the 'Spam Me'(switch) button, though email is marked required and shows with * in the Ui, the submit button is still enabled and user is allowed to submit.

Expected behaviour: User should be allowed to submit when switch is false, but if true, shouldnt be allowed to submit until email is filled in and submitted.