Page Sets; Flow Layout mode; Auto-sizing Page Object height not working as expected if Page contains columns

If a 'Flow' layout Page within a Page Set has multiple Page Objects, e.g., HTML Panels that were all configured for their height to auto-size to fill empty space on the Page then the 'white space' at the bottom of the Page should be apportioned equally between all Page Objects.

However, if one of more of these Page Objects existed in a multi-column block, this Page Object should not be included when apportioning the area to fill since Page Objects within a column should be sized to the height of the tallest column in the block.