Describe the bug
If u use FTB ultimine with mining gadget mk1 you get an instant break effect.

To Reproduce
Steps to reproduce the behaviour:

1. Get a Mining Gadget MK1
2. Click the button you need to activate FTB Ultimine
3. Use the mining gadget to break the block
4. Insta Break!

Expected behaviour
Every block which is affected by the FTB Ultimine will be instant mined.

Additional context
The version I'm playing on is 1.2.3

Theory about the problem:
The mining gadget changes the block to a custom block. FTB Ultimine detects the change and tries to convert all other affected blocks to the custom block. Which makes the mod mining gadget confused and breaks the block instead.