We begin by noting that Wis. Stat. We agree with the commission that this provision means what it says-that such an employee no longer has any vested rights in the system at that point. It would have been a simple matter for the legislature to so state, had it intended the result sought by appellants in this case. Indeed, in the absence of any such language, we consider the commission's interpretation to be not only the most reasonable, but quite possibly the only reasonable interpretation of Wis. Stat. They claim that the Wisconsin Supreme Court has ruled that, at least for years 1989 and after, they are entitled to the relief they seek.
Some background is in order.
This was at a time prior to the enactment of Wis. Stat. The circuit court issued a temporary injunction prohibiting DOR from collecting the challenged taxes pending a decision on the merits of the plaintiffs' claims. We granted the department's motion for leave to appeal and, with one immaterial exception, affirmed the circuit court's order. 157 Wis. 2d at 381. While the case was pending in this court, the legislature created Wis. Stat.