Previously we would reload the changed entries, if they were all visible, falling back on a full reload if not.
If items are not visible there should be no reason to do a full reload — I imagine the thinking was that the NSOutlineView may have previously fetched (and cached) one of the non-visible items (since one of its ancestors could just be collapsed). Since this is just a display attribute, it shouldn’t matter, even if the NSOutlineView would work like this.