search highlight behavior

I enter a word fragment in the search field and wait for the Search Results tab to pop to the fore. Fine, can click on the containing scrivenings, find the highlights. Works as before.

But when I hit the little X to clear the search, the search term disappears and I’m dumped back in the Binder. Yet when I click back to Search Results, the former search term continues to be highlighted in the same search findings. Or when I navigate elsewhere then back to Search Results, the findings and highlights persist.

Feature or Bug? Why can’t I clear the Search Results list by clicking the X?