Use element does not work correctly with visibility attribute

The SVG standard states that the element referenced by <use> should be treated as if it was deep cloned. This is not the case in Qt Svg, where the <use> element only keeps a reference (pointer) to the element referenced by use. In this case, the <use> element is not the parent of the referenced element, which causes issues with the visibility attribute. By checking the results below in the attached files, it can be noticed that the rendered SVG file by Qt Svg is different from other browsers.