For a Yes/No column, how do I filter out all checked items and their sub-items? I want to show only unchecked items whose parents and ancestors are unchecked in that attribute.
When I try using the menu from the top of the column to choose "Unchecked", the checked item and its sub-items are still visible. I have tried Grid>>Column Filter>>Filter Out Sub-Items, but this seems to make no difference.
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check is null
check is null | check is null