It is the time of year, like a change in seasons, when parents begin to think about registering their children for kindergarten.But a new state law, the state’s ongoing fiscal crisis and its complex budgeting ways have left this annual rite in limbo. The convergence of those facts not only raises questions among affected parents but it also leaves public school officials, including those in the Vacaville area, with little choice but to adopt a wait-and-see attitude.