Numbers show 1 value too high on grass path/farm land

[thyraxx]

On the left at Client/Server lighting you can see it shows the value 11, but the number on the floor shows 12. I haven't tested this on other things but so far I've only seen grass paths/farm land doing this.

Probably because you take the top off and it'll lower the block a tiny bit, it'll also lower the light value since you are technically a spot/block lower?