fix trace-less scenes with 3d annotations
fix trace-less scenes with 3d annotations

- this is an unreported bug, that the new strict-d3 logic
  uncovered.

etpinard/plotly.js,aburato/plotly.js,aburato/plotly.js,plotly/plotly.js,etpinard/plotly.js,asolagmbh/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,plotly/plotly.js,plotly/plotly.js,asolagmbh/plotly.js,etpinard/plotly.js