https://bugs.kde.org/show_bug.cgi?id=455362
--- Comment #3 from CUI Hao <cuihao....@gmail.com> ---
I can confirm Gwenview and possibly other Qt programs crashes at the same place
when copying image data. I reproduced the bug using this very simple Qt
program:
```
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
auto clipboard = QApplication::clipboard();
auto data = new QMimeData();
QPixmap pixmap(128, 128);
pixmap.fill();
auto image = pixmap.toImage();
data->setImageData(image);
clipboard->setMimeData(data);
w.show();
return a.exec();
}
```
The error happens in QEventLoop. I don't know how to debug. I blindly searched
`Jpeg2000JasperReader` references but found none in Qt5 code.
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