message: Don't do anything in PickVertex if there are no vertices
diff: @@ -414,7 +414,7 @@ rdcpair<uint32_t, uint32_t> ReplayOutput::PickVertex(uint32_t x, uint32_t y)
  MeshDisplay cfg = m_RenderData.meshDisplay;
  - if(cfg.position.vertexResourceId == ResourceId())
  + if(cfg.position.vertexResourceId == ResourceId() || cfg.position.numIndices == 0)
  return errorReturn;
  cfg.position.vertexResourceId = m_pDevice->GetLiveID(cfg.position.vertexResourceId);
  