QListWidget selection with "invert" tracks incorrectly

With a simple QListWidget (I imagine it happens with QListView also, but didn't test), you can "invert" the selected state of an item by holding down the command key and clicking, on the Mac (presumably something similar on other platforms with other modifier keys). If an item is selected it becomes deselected, if it is deselected it becomes selected. However, on macOS this happens as you drag the mouse, with every change in the mouse position. In other words, as you drag the mouse along within a single item, with the command key and mouse button both held down, the item you are dragging inside flickers between being selected and deselected, toggling every time the mouse moves by a pixel. This is not standard behavior. :->