qmllint: Cannot assign to default property of incompatible type

During parsing of code base that woks perfectly fine with QML runtime,
I got bunch of warnings for objects creation. I can not understand the pattern,
usually this the first or the second helper object created inside of QML class.

One of many examples, in form of extra simplified code below. It is simplified to the unusable form,
but "qml" tool still reports nothing about this code. But "qmllint" report warning:

qmllint Test8.qml
Warning: Test8.qml:9:13: Cannot assign to default property of incompatible type
            Image {
            ^^^^^

import QtQuick.Controls 2.2
import QtQuick 2.0

BusyIndicator {
    contentItem: Item {
        Repeater {
            Image {
                source: "/usr/share/doc/qt/qtwidgets/images/qformlayout-kde.png"
            }
        }
    }
}