[1.9] Item.getItemFromBlock returns null for Blocks.unlit_redstone_torch

When doing

Item.getItemFromBlock(Blocks.unlit_redstone_torch)

this returns null.

This is because the map BLOCK_TO_ITEM does not contain the unlit redstone torch.

The function registerItems in Item does not register the block.

Not sure if this is a forge or minecraft bug or whether it's intended.

I'm looking to render the item in a gui, so if this is intended does any one know of another way of getting the Item graphic for the block?

Regards.