Expected behavior

When you specify an initial value attribute in the tag, then on page load the multiselect component should pre-select the corresponding values.

Actual behavior

Nothing appears to be selected after page load.

Resources (screenshots, code snippets etc.)

<select class="select" multiple value="1,3,4,5,7">
  <option value="1">One</option>
  <option value="2">Two</option>
  <option value="3">Three</option>
  <option value="4">Four</option>
  <option value="5">Five</option>
  <option value="6">Six</option>
  <option value="7">Seven</option>
  <option value="8">Eight</option>
</select>
<label class="form-label select-label">Example label</label>