Right click with undyed Leather armor part on cauldron with water still lower water layer

Right click with undyed leather armor part on cauldron with water still lower water layer from cauldron
normally you can wash away all the color on a leather armor by right click
on a cauldron with water and its will take one layer of water (theres 3 layers of water in cauldron), but right click with undyed leather armor part will still take water from it.