As state budget negotiations enter the final lap , Gov. Kathy Hochul is belatedly saying that public-employee unions shouldn’t get all their utterly outrageous pension-giveaway demands. Yay? The unions call it “Fix Tier 6,” but it amounts to undoing the Tier 6 reforms passed over a decade ago — granting retroactive benefits to employees who took their jobs knowing what the pension plan was — at a cost of $100 billion to future state and local taxpayers. The existing benefits beat almost