Adding to the block tag

[urgaria]

Hello. I tried to add some modded furnaces to the block tag unkindled:needs_igniting using craftweaker, but it didn't work as wanted. They start working before I ignite them. It occurs using the brick furnace mod by cech12. I don't know if I am doing something wrong. Pls help
Here's the code I wrote in craftweaker:
tag:block:unkindled:needs_igniting.add(block:brickfurnace:brick_furnace);
Thank you.