When the player swims on the water surface, the water fog is rendered incorrectly

As of version 26.4, snapshot 6, underwater fog is being rendered incorrectly on the water's surface—specifically, it causes the sky to appear entirely blue

Most likely, the water fog code needs to be rewritten. So that there is water fog below the water surface and normal sky above, and the main thing is not to reintroduce bug MC-206561