Wrong positon of suggested file name counter in QWebEngineDownloadItem.

I used the webengine to download a file called "Test (1. Kopie).txt".
The QWebEngineDownloadItem return for path() "/path/Test (1. Kopie).txt".
I didn't delete the file.

After some some hours i downloaded the same file again.
The QWebEngineDownloadItem return for path() "/path/Test (1(1). Kopie).txt".

In my opinion the object should return for path() "/path/Test (1. Kopie)(1).txt".
This is also the path like chromium would return.

I didn't find any other bug about this.

You can find the filename calculations in https://github.com/qt/qtwebengine/blob/f0c5f3306fadc7dea7a13defd8b9cf20a6982493/src/core/download_manager_delegate_qt.cpp#L161