Item selection is ambiguous with search "Top results"
When searching for emails, some items can appear in BOTH "Top results" and regular results sections. It's possible to select an item that appears in "Top results", and at the same time not select the same item under regular search results, or vice versa. Then the expected result of actions becomes ambiguous.
For example I often search for a category of emails I want to delete. I would select all results, unselect a few that I want to keep, then click "Delete all". But, if the item I unselected happens to appear in both sections, then it gets deleted anyway because I haven't unselected it from both sections. This is extremely non-intuitive.