A grandfather clause for corruption?

The state Senate Monday finally passed a bill that would make public employees and officials who committed a job-related crime forfeit their pension. But the penalties would only apply to crimes committed AFTER the bill becomes law. Of course! So now those former public officials -- think Operation Bid Rig and the like -- who are heading off to state prison after taking thousands of dollars in bribes can do their prison time and come out and collect their taxpayer-supported pensions. Hey, they weren't told they could lose their pensions when they broke the law, right? So it's unfair to tell them after they ripped off their constituents that they can't expect the state's taxpayers to fund their retirement.
And, of course, it only applies to the job tied to the crime they committed. If they hold a bunch of public jobs, they're eligible to collect from all the others.
That's really showing them the error of their ways, huh?