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2013-10-08 16:25:48 [SEVERE] [fml.ItemTracker] Missing items : {} 
2013-10-08 16:25:48 [SEVERE] [fml.ItemTracker] Mismatched items : {256=(Item 256 
, Type ibc.mcl.ibc.item.ItemBurnLeave, owned by IBC, ordinal 0, name null, claim 
edModId null, Item 256, Type net.minecraft.item.ItemSpade, owned by Minecraft, o 
rdinal 0, name null, claimedModId null), 30096=(Item 30096, Type ic2.core.item.r 
eactor.ItemReactorHeatSwitch, owned by IC2, ordinal 1, name reactorHeatSwitchCor 
e, claimedModId null, Item 30096, Type ibc.mcl.ibc.item.ItemCompressedLeave, own 
ed by IBC, ordinal 0, name null, claimedModId null), 30197=(Item 30197, Type ic2 
.core.item.tool.ItemIC2Spade, owned by IC2, ordinal 0, name itemToolBronzeSpade, 
claimedModId null, Item 30197, Type ibc.mcl.ibc.item.ItemBurnLeave, owned by IB 
C, ordinal 0, name null, claimedModId null)} 
here you see what happens:
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it also happens like this:
bronze
stick ----> my item
stick