tst_QQuickListView::sectionsSnap(flick) fails

ace unknown - QQuickView(0x7fbd6ec1c930 active exposed, visibility=QWindow::Windowed, flags=QFlags<Qt::WindowType>(Window), geometry=391,204 400x400) QQuickRootItem(0x7fbd6ec233d0, parent=0x0, geometry=0,0 400x400) QPointF(100,45) QPointF(100,45) subtreeHoverEnabled false
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown - - lock for sync
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown - - wait for sync
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) WM_RequestSync
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) --- done processEventsAndWaitForMore()
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) syncAndRender()
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) - updatePending, doing sync
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) sync()
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.qpa.openglcontext unknown - Making <NSOpenGLContext: 0x7fbd6ef68580> current in QSGRenderThread(0x7fbd6ed6f3a0) for QPlatformSurface(0x7fbd6ed5f760, class=QSurface::Window, type=QSurface::OpenGLSurface, window=QQuickView(0x7fbd6ec1c930))
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.quick.dirty unknown - QQuickWindowPrivate::updateDirtyNodes():
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.quick.dirty unknown -    QSGNode: QQuickRectangle(0x7fbd6ed5bb40, parent=0x7fbd6ed454a0, geometry=0,149.782 400x50, z=100) Position
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) sceneGraphChanged
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.quick.dirty unknown -    QSGNode: QQuickItem(0x7fbd6ed454a0, parent=0x7fbd6ed453f0, geometry=0,-49.7824 400x400) Position
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) - sync complete, waking Gui
 agent:2018/10/18 11:18:49 build.go:193: QDEBUG : tst_QQuickListView::sectionsSnap(drag) [     2.653 D] qt.scenegraph.renderloop unknown -                     (RT) - rendering started
 agent:2018/10/18 11:18:49 build.go:193: QSYSTEM: tst_QQuickListView::sectionsSnap(drag) Maximum amount of warnings exceeded. Use -maxwarnings to override.
 agent:2018/10/18 11:18:53 build.go:193: PASS   : tst_QQuickListView::sectionsSnap(drag)
 agent:2018/10/18 11:18:56 build.go:193: FAIL!  : tst_QQuickListView::sectionsSnap(flick) Compared doubles are not the same (fuzzy compare)
 agent:2018/10/18 11:18:56 build.go:193:    Actual   (listview->contentY()): 0
 agent:2018/10/18 11:18:56 build.go:193:    Expected (qreal(-50))          : -50
 agent:2018/10/18 11:18:56 build.go:193:    Loc: [tst_qquicklistview.cpp(2725)]
 agent:2018/10/18 11:18:56 build.go:193: PASS   : tst_QQuickListView::cleanupTestCase()
 agent:2018/10/18 11:18:56 build.go:193: Totals: 3 passed, 1 failed, 0 skipped, 0 blacklisted, 9297ms