Web browser widget cliping-bug if rotated

Moin, moin!

The web browser widget should stay sqare, even if rotated. But the content of the web page reaches far out of the original box, and is only partly trimmed by the formal widget borders. The other part is clipped by the invisible border, which sourrounds the widget while rotation.

The clipping-flaw looks quite strange at first, but it seems that the rotation, display, and the input responses are correct, as far as I could test.

Nice day,

This is a direct upstream issue. Could you find this or a similar bug on bugs.kde.org?
If not would you mind adding a new bug to it. The best with a Screenshot and a step by step on how to reproduce it.