title: redux-form multiple checkbox, values in a single array without bool values
body: <p>I know that checkbox receive a bool value, so what can i do to change this with multiple checkbox.</p>
  
  <p>below is where i have my all checkbox, the JSX file, each checkbox is a category and user can choose one or more categories</p>
  
  <pre><code>&lt;div className='columns is-multiline'&gt;
    {this.props.propsCategories.data.list.map((category, i) =&gt; (
      &lt;div key={ i } className='column is-one-quarter'&gt;
        &lt;Field
          name='category[]'
          label={ category.title }
          component={ WrapperInputCheckbox }
          setCategory={(e) =&gt; this.handleChange(e, category.id)}
        /&gt;
      &lt;/div&gt;
    ))}
  &lt;/div&gt;
  </code></pre>
  
  <p>in my handleChange i'm just trying change a single value. </p>
  
  <pre><code>//handleChange
  handleChange = (e, id) =&gt; {
    e.target.value = id
    console.log(e.target.value);
  }
  </code></pre>
  
  <p>but when i submit my form in category array i get</p>
  
  <pre><code>Category: Array[0]
    "" : true
    length : 0
  </code></pre>
  
  <p>the value still a bool :X</p>
  
  <p>i need the value become a array like</p>
  
  <pre><code>category['id-1', 'id-n']
  </code></pre>