Stacked bar-chart annotation: labels go out of the plot when zooming-in using coord_cartesian(xlim, ylim)

[alshan]

See comment (#978 (comment)):

One more related issue: When attaching numerical labels to corresponding stacked bars via labels=layer_labels(['sales_value']), it works fine, but upon altering the viewport limits via coord_cartesian(ylim=(min, max)), the labels on the lowest bars are not visible anymore because they sink to the very bottom, while the highest bars' labels are positioned at the very top, which affects the readability of the plot.