GridLayout inside SwipeView

When adding a GridLayout as a delegate to SwipeView (Note: SwipeView takes over the geometry management of items added to the view.) the GridLayout streches and does not display it's content correctly anymore!
I would have expected that the layout spacings still apply, but instead the whole layout is streched.

A workaround is to add an Item as a delegate to the SwipeView and GridLayout as it's child.

Here is a minimal example to reproduce the issue:LayoutTest.zip