Change warnings from failing PV refits
Silence warning in DVCommonBase when a PV refit fails, repetition rate set to 0. Switch on warnings in LoKi::PVReFitter when a PV refit fails with a repetition rate of 1.
Silence warning in DVCommonBase when a PV refit fails, repetition rate set to 0. Switch on warnings in LoKi::PVReFitter when a PV refit fails with a repetition rate of 1.