Boost: tooltip doesn't work for multiple columnrange points with the same x

[raf18seb]

Expected behaviour

Tooltip works for all the points

Actual behaviour

Tooltip works only for the first point of all the points that have the same x in data.

Live demo with steps to reproduce

https://jsfiddle.net/BlackLabel/vncadzke/

Product version

Highcharts 9.3.2

Internal note: this flag stops adding points with the same x:

highcharts/ts/Extensions/Boost/BoostInit.ts

Lines 130 to 131 in 8c15ecb

	if (enableMouseTracking && !pointTaken[index]) {
	pointTaken[index] = true;

But even if we build a tree with all the points, it's still hard to find a correct point because it's looking for x, y or xy position (findNearestPointBy) for low or high value, but the whole column rect that mouse is hovering over needs to be found.
There's no workaround at this moment for this.

[TorsteinHonsi]

Demo with the fix applied: https://jsfiddle.net/highcharts/k4bxoht5/