scattergl missing lines after non-line trace

[etpinard]

See https://codepen.io/etpinard/pen/bKQjMe

plotly.js version of gl-vis/regl-line2d#35

cc @dy

[brian428]

Just adding a +1 here to get any updates, since this is also affecting us.

[ErwanMAS]

I have a similar issue :
https://codepen.io/anon/pen/QVNjNw
or
https://codepen.io/anon/pen/QVNjVK

I rewrote the first codepen , to add a second chart to display the regression .

https://codepen.io/anon/pen/wEGKew

In these 3 examples , a whole trace will not be well displayed . only markers no lines .