Can VSM be applied explicitly where the visual states contain setter properties as styles?

[NirmalKumarYuvaraj]

Setting the Visual State Manager (VSM) for a button explicitly through a style property does not work as expected. However, assigning it implicitly works fine.

In my case, I have a button with a base style of white text color. I derive two styles from this: one is NormalStateStyle, and the other is DisabledStateStyle. NormalStateStyle sets the background color to green, and DisabledStateStyle sets the background color to black. When VSM is set as follows:

<ContentPage.Resources>
  <Style x:Key="base_style" TargetType="Button">
    <Setter Property="TextColor" Value="White"/>
  </Style>

  <Style x:Key="NormalStateStyle" TargetType="Button" BasedOn="{StaticResource base_style}">
    <Setter Property="BackgroundColor" Value="Green"/>
  </Style>

  <Style x:Key="DisabledStateStyle" TargetType="Button" BasedOn="{StaticResource base_style}">
    <Setter Property="BackgroundColor" Value="Black"/>
  </Style>

  <Style x:Key="ButtonStatesStyle" TargetType="Button">
    <Setter Property="VisualStateManager.VisualStateGroups">
      <VisualStateGroupList>
        <VisualStateGroup x:Name="CommonStates">
          <VisualState x:Name="Normal">
            <VisualState.Setters>
              <Setter Property="Style" Value="{StaticResource NormalStateStyle}"/>
            </VisualState.Setters>
          </VisualState>
          <VisualState x:Name="Disabled">
            <VisualState.Setters>
              <Setter Property="Style" Value="{StaticResource DisabledStateStyle}"/>
            </VisualState.Setters>
          </VisualState>
        </VisualStateGroup>
      </VisualStateGroupList>
    </Setter>
  </Style>
</ContentPage.Resources>

<Button
    ...
    Style="{StaticResource ButtonStatesStyle}" />

I toggle the enabled state using another button. After analyzing the source, it appears that the normal state style code replaces the existing VSM applied to the button. This issue can be observed for all elements bound to it. This was working in xamarin forms. Is this the intended behavior?.