Qt crashed with BAD_ADDRESS when QQuickTransitionManager::cancel()

sisyphsu

env: Qt 5.9.1 + macOS 10.12

First, I have a qml component, use ListView to show some log with animation, like:

Item {
    id: root
    property int maxHistory: 256
    ListView {
        model: ListModel {
            id: consoleModel
        }
        delegate: item
        displaced: Transition {
            SmoothedAnimation {
                properties: "y"
                duration: 240
                velocity: 100
            }
        }
        focus: true
        clip: true
    }
    Component {
        id: item
        Item {
            width: root.width
            height: 40
        }
    }
    Event {
        key: "consoleUpdate"
        onActive: function (data) {
            consoleModel.insert(0, JSON.parse(data))
            if (consoleModel.count > root.maxHistory) {
                consoleModel.remove(consoleModel.count - 1)
            }
        }
    }
}

This component will insert the newer log at row 0, and remove the last one if ListView is too large.

When log emitted too quick(50/s), the Qt will crashed with QQuickTransitionManager::cancel().

I can't see any detail in QQuickTransitionManager::cancel(), i use CLion, and this is the debug info:

sisyphsu

I think this may because the Transition conflict with consoleModel.remove.

I can't upload my ScreenShot, what the hell?
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