byRow calculation incorrect due to hidden elements

[astanley218]

The plugin reveals hidden content in order to calculate the max height but this can change the position of remaining visible elements, potentially breaking the byRow logic. An example can be seen in this fiddle

[arturkim]

+1

[liabru]

The plugin has a feature that will try to match hidden elements if they are selected, because this is a common case. I don't really think there's a solution to this case other than just avoiding selecting elements that are hidden, in this case don't select col3.