looser placeholder check in titles for old-style placeholder that contained the axis number caught by test image 19
looser placeholder check in titles
for old-style placeholder that contained the axis number
caught by test image 19

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