QML SelectionRectangle behavior change

[NinTendai]

Hello

I'm not sure if I am encountering a bug with QML 6.8 or not but SelectionRectangle is no longer acting as intended.

In previous QT versions you could click and drag several cells (much like excel cells) and select several regions. However, with QT 6.8 now, each click and drag overwrites previous click and drags.

I can't find anything in the documentation QT SelectionRectangle that references this change and closer inspection of the actual element shows no real changes.

                    CellGridView {
                        id: gridTarget
                        anchors.top: titleTypography.bottom
                        anchors.left: cellGridDelegate.left
                        anchors.right: cellGridDelegate.right
                        anchors.bottom: cellGridDelegate.bottom

                        model: cellGridDelegate.modelData.mapModel
                        selectionModel: cellGridDelegate.modelData.selectionModel


                        delegate: CellGridDelegate {
                            onClicked: (row, column) => {
                                gridView.selectionModel.select(
                                    gridView.model.index(row, column),
                                    ItemSelectionModel.Toggle
                                );
                            }
                        }

                        Controls.SelectionRectangle {
                            target: gridTarget
                        }
                    }

I'm not sure if I have encountered a bug, or maybe I had it the other way around where the bug was working in my favour. Any help is appreciated!