SplitView ignores item's implicitSize if minimum or maximum depends on SplitView size

In my example, the item always set to the minimum size, even if it has implicitSize specified. If I change the item code to not depend on SplitView size, for example:

Layout.maximumHeight: 250

all works fine.

I fixed that already for earlier implementation of controls. See https://codereview.qt-project.org/#change,47601 for more information.