Fabric version: 0.11.6
Twilight Forest version: 4.0.51 (downloaded from the Discord server)
Fabric API version: 0.40.1
Cloth Config version: 5.0.38
This was encountered in the Fabric 1.17 in-development versions, but, due to its nature as a loot table/placement issue, I would presume that it exists on Forge as well.

What I expected to happen:
If I pick the berries off of a torchberry plant and then shear it, the resulting torchberry plant item, when placed, would not have any berries on it.

What happened instead:
You can pick the berries off of a torch berry plant, shear it, place the plant, and it will have more berries to pick.

Describe the solution you would like:
Either...

• Remove the torch berry plant item and have torch berry plants be placed using the torch berries item, like sweet or glow berries. Have torch berry plant block with berries drop more than one berry, and drop only one without;
• Have the torch berry block drop nothing if sheared while it has no berries; or
• Have the plant item place a torch berry block with no berries, removing them from the item sprite, and have torch berry blocks drop a torch berries item and the plant item when sheared.

I don't exactly see this as an issue. Here's why:
Torchberries got a new mechanic where you can pick the berries from the plant, as you know. There's also an additional thing where you can bonemeal the plant to grow more berries. Breaking and replacing the plant is simply just a workaround to using bonemeal, but still requires the use of something. I'll still end up fixing this, but I just wanted to show why I don't exactly see it as an exploit

That makes sense. Less an exploit and more a behavioural quirk, then, like if rose bushes dropped two rose bush items when sheared.