'simple-form' example checkbox doesn't update checked values.

[adamwhitlock1]

Description:

When opening up the example simple-form and selecting checkbox values, those values don't update to true in the debug readout, and the required validation error message remains no matter how many values are checked.

Expected: checkbox values update the validation state and form data debug display Actual: checking a checkbox doesn't change state of form values and validation error remains

Using version: 0.0.6 on MacOS Monterey 12.4, Chrome 103.0.5060.114

Steps to reproduce:

• Edit examples/index.jsx to import and use SimpleApp from 'simple-form/index.jsx`
• Run yarn serve-examples and open localhost:3000
• Check a checkbox and observe validation message and debug readout

[taylorkaren]

Notes from 8/9/22 walkthrough meeting with Adam:

• Adam: Is it the checkbox group, or something specific to how the form is wired up?
• Micah: We can double check to make sure things are put together properly.
• Adam: No immediate need for checkboxes, but will likely be using a radio group.
• BJ: On the demo burial form, the check box group does not have the required tag inside each option anymore. That’s the one difference he sees right now between the demo form and the simple form.

[taylorkaren]

Anish: Should check if the radio input is also experiencing the same error as the checkbox.

[bjmccotter7192]

PR #539