Code

Text {
    id: txt
    text: "Built-in"
    property string customText: "Custom"
}

Steps to reproduce

1. Put the code above into a *.ui.qml file
2. In the Property Editor, click the "tr" button for txt.text
3. In the Property Editor, click the "tr" button for txt.customText
4. In the Property Editor, click the "tr" button for txt.text again
5. In the Property Editor, click the "tr" button for txt.customText again

Outcomes

Furthermore,

• Step #2: The "tr" button for txt.text becomes highlighted (Expected)
• Step #3: The Binding button txt.customText becomes highlighted (Not Expected)