Multiple starting outlining nodes on same line

Hi Actipro

I'm facing unexpected behavior when there are multiple starting outlining nodes on the same line.

public class a { public class b { public class c {
}
}
} 

I can see a - button in the outlining margin in the first line, and a closing node indicator for lines 2, 3, 4 for each closing }

1. When I hover over the - button in the outlining margin

Expected: The highlighted area ends at the outer most closing node indicator on line 4

Actual: The highlighted area ends at the closing node indicator on line 2 

2. Clicking on the - button collapses lines 1 to 4 (expected)

Basically it's confusing that the highlighted area on hovering on - button is different from the actual area that's collapsed.

3. Click on the + button

Expected: Only the outer most outlining node should be expanded. Inner nodes should still be collapsed and + button should stay as + so that inner nodes can be subsequently expanded. (See Visual Studio for their behavior)

Actual: All lines 1 to 4 are expanded - so effectively the inner nodes are rendered useless and cannot be manipulated