Bukkit

Not sure if this is considered a bug, but adding enchanted books to a shop that have been created by combining with other books makes a separate entry instead of stacking with books of the same enchantment that weren't created on an anvil.  The anvil books have the "RepairCost" NBT tag; but is there any way to either strip this tag when adding, or ignore it for stacking purposes?

I'll look into it but I can't promise anything because Bukkit isn't really good a accounting for NBT tags and stacking items with them.