Fix a case where the new search can leave us with no pulse left
Fix a case where the new search can leave us with no pulse left

mumble-voip/celt-0.7.0,mumble-voip/celt-0.7.0,dezelin/celt,mumble-voip/celt-0.11.0,dezelin/celt,dezelin/celt,mumble-voip/celt-0.7.0,mumble-voip/celt-0.11.0,Distrotech/celt,mumble-voip/celt-0.11.0,Distrotech/celt,oneman/opus-oneman,Distrotech/celt,oneman/opus-oneman,oneman/opus-oneman