title: onChange event not firing Blazor InputSelect
body: <p>I have the following Code for an InputSelect </p>
  
  <pre><code>               &lt;InputSelect class="form-control form-control form-control-sm"
                               placeholder="Role"
                               disabled="@IsReadOnly"
                               @bind-Value="Model.Role"
                                @onchange="@RoleChanged"&gt;
                      &lt;option value="Member"&gt;Member&lt;/option&gt;
                      &lt;option value="Admin"&gt;Admin&lt;/option&gt;
                      &lt;option value="Pioner"&gt;Pioneer&lt;/option&gt;
                      &lt;option value="Retailer"&gt;Retailer&lt;/option&gt;
                  &lt;/InputSelect&gt;
  </code></pre>
  
  <p>And for the Code:</p>
  
  <pre><code>bool ShowCreated;
  bool ShowUpdated;
  bool IsReadOnly;
  string SelectedRole;
  
  public EditForm AccountForm;
  public Multi.Dtos.RegistrationDto Model = new Dtos.RegistrationDto() { Role = "Member" };
  
  public void RoleChanged(ChangeEventArgs e)
  {
      SelectedRole = e.Value.ToString();
      Console.WriteLine(e.Value);
  }
  </code></pre>
  
  <p>The RoleChange function is not invoked when i try to select a new item. Can someone point out what wrong with this. The value of the proper has changed but the Event was not called.</p>