Example code files have contradictory licenses

The example code generally seems to have a license that only allows use under the LGPL, and that explicitly forbids commercial use.

This feels contradictory compared to what the actual documentation of some examples say:
http://doc.qt.nokia.com/qt-maemo-4.6/maemo5-webview.html
"In order to suppress text selection, this example introduces a helper class, QWebViewSelectionSuppressor. The class is standalone, so the header file qwebviewselectionsuppressor.h can be copied and used in any project."

In contradiction to this, the file this concerns, http://doc.qt.nokia.com/qt-maemo-4.6/maemo5-webview-qwebviewselectionsuppressor-h.html, has the following license header:

• • $QT_BEGIN_LICENSE:LGPL$
  • No Commercial Usage
  • This file contains pre-release code and may not be distributed.
  • You may use this file in accordance with the terms and conditions
  • contained in the Technology Preview License Agreement accompanying
  • this package.
    Followed by a normal LGPL header.

This poses some problems if one would want to reuse this file directly in a commercial application, as the text of the example suggests is the intention.