Right folks, I cannot exclude that the systematic problem is between the chair and the keyboard so please bear with me.
I can't figure out how to deselect rows in the table (new one, not legacy). This table is set in the Single row selection mode, so there isn't these cute little selection boxes at the start of the row, which simply highlights when you click on the row.
And I don't know how to deselect a row previously selected. I don't mean programmatically, I mean through user clicks. I can select a row by clicking on it, it highlights and reacts correctly with the event handlers, but for the life of me I cannot figure out how it is meant to be de-selected.
I have tried another left click on said row, as well as ctrl-click, capital-click, right-click... I'm running out of ideas.
What am I missing?