Regression 5.15.5->6.0.0: Layout issue

        ColumnLayout {
            id: topLayout
            anchors.fill: parent
            RowLayout {
                Rectangle {
                    id: colorWell
                    width: height
                    height: sliders.height
                    color: "red"
                }
                ColumnLayout {
                    id: sliders
                    Slider {
                        id:s
                        Layout.fillWidth: true
                        focus: true
                    }

                    Slider {
                        id:s1
                        Layout.fillWidth: true
                        focus: true
                    }
                }

            }
        }