QClipboard mimeData() corruption

Given the following use case

const QMimeData * data = qApp->clipboard()->mimeData();
qApp->clipboard()->setText("anything");
doSomething(data); // here, data has potentially been deleted under the hood.

This popped up because I needed to temporarily put something on the system clipboard (interacting with an external application with a less than desirable interface), which lead to fairly consistent crashes. Originally, doSomething was making a copy and setting on the clipboard. The solution seems to have been to make a copy before changing the clipboard, but the clipboard changing is potentially outside of the control of the programmer. Can either a. the documentation be updated and/or b. some sort of QMimeData copy mechanism be introduced?