Q3TextBrowser resize issue

When resizing the textt in the application from the code below control using "ctrl" key and middle mouse wheel, then it is possible to resize the html correctly until a minimum size is reached, Then only SOME of the text can be resized up again.

int main(int argc, char **argv)
{
QApplication a(argc, argv);
Q3TextBrowser te;
te.mimeSourceFactory()->setExtensionType("html", "text/html");
te.mimeSourceFactory()->setFilePath(".");
te.setSource("test.html");

te.show();
return a.exec();
}