Charts: setPointFormatter doesn't work

[gpsfl]

Description

I added a custom point formatter function to a series tooltip, but it has no effect.

Expected outcome

The tooltip should be formatted according to the function

Minimal reproducible example

final Chart myChart = new Chart(ChartType.LINE);

ListSeries series = new ListSeries("Tokyo", 49.9, 71.5, 106.4);

SeriesTooltip seriesTooltip = new SeriesTooltip();
seriesTooltip.setPointFormatter("function() { return this.x + ' km²' }"); // <-- Custom formatter

PlotOptionsSeries options = new PlotOptionsSeries();
options.setTooltip(seriesTooltip);
series.setPlotOptions(options);

// Tooltip element needs to be configured on chart
myChart.getConfiguration().setTooltip(new Tooltip());

myChart.getConfiguration().addSeries(series);

Steps to reproduce

1. Add the example from above
2. Hover over a data point in the chart

Environment

Vaadin version(s): 23.3.2
OS: Windows 10

Browsers

Chrome

[gpsfl]

Probably related to the following commit:
vaadin/web-components@3402ea3

The data series are sent as an array, but the new method will only inflate objects.

[echarlus]

I've encountered the same issue.
If you set the formatter to a Tooltip configured at the chart, level it works. If you set it at the Series level then it does not work.
That's a real pain.

[ugur-vaadin]

Closing as a duplicate.