QTreeWidget::visualItemRect() returned an invalid QRect when a column
was moved and then hidden (or the other way round). The reason was that
the logical index returned by QHeaderView::logicalIndexAt() was again
passed to QHeaderView::logicalIndex() to create the QModelIndexes needed
for QTreeView::visualRect()
Task-number: QTBUG-28733
Change-Id: I8676f21bcab8c05c2260b85d483902f18cbf3e24
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>