Scene Builder uses Group.impl_pickLocal() to identify which selection handles or ring are below the mouse.

We found a case where it seems that this routine does not report the correct result.

To reproduce:
1) start Scene Builder and load the attached test.fxml
     => the design is composed of two anchor panes and a button
     => the button is resized to fit its parent anchor pane
2) Select the button
     => you should have something like in Snapshot1.png
     => above the Button, Scene Builder has drawn:
             1) an orange ring
             2) the selection handles (blue frame with height white&blue rectangles)
3) If you move the mouse over the bottom middle handle, SB displays the resize cursor : see SnapshotResize.png
4) If you move the mouse downward, the resize cursor should remain until the mouse is outside of the selection handles
     => Issue : the cursor changes as soon as the mouse is in lower half of the selection handle : see SnapshotWrongCursor.png
     => After investigation it seems that Group.impl_pickLocal() returns the "orange ring" in place of the "selection handle" object

SnapshotAnnotated.pdf displays a zoom of the situation :
1) when the mouse is on A, Group.impl_pickLocal() returns the selection handle object (the white rectangle with blue border)
2) when the mouse is on B, Group.impl_pickLocal() returns the orange ring (an transparent path with a wide orange border
*drawn outside*)
3) any position above the dotted line is treated as A
4) any position below the dotted line is treated as B

=> it is like if the orange ring, although drawn *behind the handle", was considered as *above the handle" by impl_pickLocal()
=> may be use of StrokeType.OUTSIDE for drawing the orange ring has some influence ?