pat-validation ignores "required" on pat-autosuggest

[reinhardt]

When adding an input.pat-autosuggest with a "required" attribute to a form.pat-validation element, it is ignored and the form can be submitted without entering/selecting a value.

Minimal example:

        <form class="pat-validation">
            <input type="text" required="required" name="input1" />
            <input type="text" class="pat-autosuggest" required="required" name="input2" />
            <button type="submit">Submit</button>
        </form>

Submitting the form does not work when omitting the first input, but it does work when filling in the first but omitting the second (autosuggest) input.

[reinhardt]

My guess is that this is the problem: https://github.com/Patternslib/Patterns/blob/master/src/pat/validation/validation.js#L260

The original input of a pat-autosuggest element becomes hidden when initializing select2, and the replacement inputs don't inherit the required attribute. However, invisible elements are ignored by pat-validation.