When replacing a snow layer with a grass block, podzol or mycelium, the block has the "snowy=true" blockstate

The bug

When you place a grass block on a layer of snow, the sides receive the snow texture, and the top turns a weird greyscale version (I'm guessing the default, and what it looks like under the snow), instead of just a regular grass block.

The issue is fixed if a block is placed on top it, or if it is moved by a piston.

To reproduce

1. Place a layer of snow.
2. Place a grass block on top of it (so that the snow is replaced by the grass block)
   → You now have a snowy grass block without snow on it