Burned Bear Meat

Hi, I think I have found a bug. all works fine but when bear meat is placed in a fire or in a bbq, the burned meat does not stack.

only stackes when pickedup, this causes the fire or bbq to fill up really fast.

this is my exact code in the data folder 

"ItemId": -989755543,
"Shortname": "bearmeat.burned",
"HasDurability": false,
"VanillaStackSize": 20,
"CustomStackSize": 500

Merged post

What I have found so far is that, if used with furnace splitter then if you place bear meat into the campfire and it splits into two stacks, turn the fire on until it stops on its own, then place the 2 stacks on each other. turn the fire on again and it works fine