Mod Version: 1.4.2
Minecraft Version: 1.7.10

The method used by bonemeal infused items to modify the blocks to hydrated farm blocks appears to be to add the :1 META value.

This can be exploited by players using various mods.

Example (method to reproduce):

1. craft a necklace with bonemeal and a nether star (Want largest range of manipulation but not necessary).
2. till dirt into farm land. water nearby not necessary but if nearby notice water level reduces when you move onto dirt block.
3. move onto farmland block.
4. use necklace on farmland block.
5. notice any blocks nearby (in the range of necklace) that have shared item IDs with different META values all change to the :1 META value. (e.g. Sand ID - 12 becomes Red Sand 12:1)

This is easily exploitable. In a pack that I currently play I have access to Creative only items in a SMP world due to this issue.

Sorry if this isn't clear. Feel free to ask for more info. I could even create a youtube video showing the exact method.

I will look into it and try to fix it. However, it might not come anytime soon as I am working on a bigger update.

I have decided to close this issue as I started working on Jewelrycraft 2, which doesn't have this problem.