Option character "<" problem

[GarryOne]

Form render fails on this XML

<form-template>
    <fields>
        <field label="Checkbox Group" name="checkbox-group-1458765767942" type="checkbox-group">
            <option value="option-1">< Option 1</option>
            <option value="option-2">< Option 2</option>
        </field>
    </fields>
</form-template>

So, the problem is character "<" in the option name.