Qt documentation - Dita XML format <codeblock> sometimes contains illegal/broken code.

In some instances there are code creping into the <codeblock> elements that should not be there.

E.g.
<codeblock outputclass="cpp">AnalogClock::AnalogClock</@func>(<xref href="qwidget.xml">QWidget</xref> *parent)
...
}</codeblock>

In the first line "</@func>" appears in the code. These characters do not belong there.

Suggested solution: clean up the code.