martin@infinitynetmedia.co.uk → created an issue.
@maskedjellybean
I've seen a couple of pasts from you about this need for "note set", which I found while looking for a neater solution than I already have, which is not ideal but I thought I would share as it doesn't rely on hooks.
This is zoomed out so you can see all the relevant settings, but if you make your filter a grouped filter, you can set options for 'Yes', 'No' and 'Not Set' for Booleans (and indeed other types).
Just add new grouped filters for each possible option, and then a new options which is "is none of", and select all possible options. This gives you the 'not set' I think you are looking for.
martin@infinitynetmedia.co.uk → created an issue.
I forgot to add - thanks for your work on this module!!