Since when did forge start not crashing the client when ID's are conflicting? Was better that way imo.
Seems like that only happens when 2 blocks have the same ID's - not with two items or an item and a block.
It was never different I think.
But previously there was a Hard Limit between Items and Blocks.
Since the Block ID range shifted we have Items and Blocks in the same range - at last the Vanilla Items.
Will Item IDs resolved by Forge, or will they be hardcoded into the mod?