Custom recipe [result problem]

Hi,

I was creating tow custom recipes with nether_brick_slab for an result

of nether_bricks and nether_brick. But both recipes will going to nether_brick results.

Watch out:

First [ nether_brick from nether_brick_slab ]

 
{
    "type": "crafting_shapeless",
    "ingredients": {
        "#": {
            "item": "minecraft:nether_brick_slab"
        }
    },
    "result": {
        "item": "minecraft:nether_brick",
        "count": 2
    }
}
 
Second [ nether_bricks from nether_brick_slab ]
 
{
    "type": "crafting_shaped",
    "pattern": [
        "#",
        "#"
    ],
    "ingredients": {
        "#": {
            "item": "minecraft:nether_brick_slab"
        }
    },
    "result": {
        "item": "minecraft:nether_bricks"
    }
}
 
Is this a bug or my mistake?