do not coerce colorscale for mesh3d when not needed
do not coerce colorscale for mesh3d when not needed

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