Extra custom recipes don't stack like other items with multiple recipes

The bug

Custom recipes for items with existing recipes don't stack with the original.

Recipes like purple dye can display different recipes for making the item. I added a custom recipe to make 4 normal chests out of 8 logs (any type) and it made a separate recipe, while I think this should stack with the original one.

How to reproduce

1. Create a custom recipe
2. Mine looks like this:

logs_to_chests.json
{
    "type": "crafting_shaped",
    "pattern": [
        "###",
        "# #",
        "###"
    ],
    "key": {
        "#": {
            "tag": "minecraft:logs"
			}
    },
    "result": {
        "item": "minecraft:chest",
        "count": 4
    }
}

   3. Add it inside a data pack to your saves folder
   4. Load the data pack
   5. Craft the original and new recipe in a crafting table.
   6. Open recipe book in a crafting table