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import QtQuick 2.0
Item {
property bool test: false
property var attributes: { 'color': 'red', 'width': 100 }
property int bound: attributes.width
Component.onCompleted: {
if (bound != 100) return;
attributes.width = 200 // bound should remain 100
if (bound != 100) return;
test = true;
}
}