Armor Stand Visual Bug Regarding Blocks in 'Head Slot' of Armor Stand

When armor stands are summoned with a block in the head slot, if part of the armor stand's body is within a block, the block in the head slot will render as shaded. This affect the rendering of the block in the head slot of the armor stand, even if the armor stand has the nbt data, Marker:1b or Invisible:1b.