Restyling x or y values with null values creates a ghost when filling is enabled

[ChristofferHS]

If you restyle the x or y values of a trace that forms part of a filled area with an array of null values, you get a ghost in the shape of the original filled area. It shows up at any zoom level and regardless of how you pan.

CodePen

[alexcjohnson]

Thanks for the very clear report @ChristofferHS 🏆 I used it almost verbatim in testing my fix -> #2280