Clarify on how JS signal handlers should be handled for .ui.qml files

import QtQuick 2.7

Page1Form {
    button1.onClicked: {
        console.log("Button Pressed. Entered text: " + textField1.text);
    }
}

    textField1.onEditingFinished: {
        console.log(textField1.text)
    }

// ...
qrc:/main.qml:17 Type Page1 unavailable
qrc:/Page1.qml:9 ".onEditingFinished" is not available due to component versioning.

    Connections {
        target: textField1
        onEditingFinished: {
            console.log(textField1.text)
        }
    }