Problem with QPainterPath

I used QPainterPath to create a polygon.

Code:

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QPainterPath path;
    path.addEllipse(0, 0, 50, 50);
    path.closeSubpath();
    qDebug() << path.currentPosition();
 
    path.moveTo(25, 25);
    path.lineTo(25, 40);
 
    m_polygon = path.toFillPolygon();

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I want see line in my ellipse, but it seems than method closeSubpath() don't put currentPosition to (0, 0) and qDebug tell me that too. I want draw my line in ellipse without line that move from ellipse to start point of this inner line. Any ideas? Thank you for help!

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Added after 1 36 minutes:

Even I use QPainterPath Class Reference example I see line from (20, 20) to (0, 0). It seems that path.moveTo(0, 0) draw line.

Code:

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QPainterPath path;
 path.addRect(20, 20, 60, 60);
 
 path.moveTo(0, 0);
 path.cubicTo(99, 0,  50, 50,  99, 99);
 path.cubicTo(0, 99,  50, 50,  0, 0);
 
 QPainter painter(this);
 painter.fillRect(0, 0, 100, 100, Qt::white);
 painter.setPen(QPen(QColor(79, 106, 25), 1, Qt::SolidLine,
                     Qt::FlatCap, Qt::MiterJoin));
 painter.setBrush(QColor(122, 163, 39));
 
 painter.drawPath(path);

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