original fix by @antonpod, see https://github.com/highcharts/adapt-chart-to-legend/issues/2 ("added a condition which prevents adding height more than once")
original fix by @antonpod, see https://github.com/highcharts/adapt-chart-to-legend/issues/2
("added a condition which prevents adding height more than once")

highslide-software/adapt-chart-to-legend,highcharts/adapt-chart-to-legend