QDoc macro expansion breaks one-line code snippets

Generating documentation across dev, I found these warnings from QDoc:

/home/paul/source/qt/qt5/qtdatavis3d/examples/datavisualization/itemmodel/doc/src/itemmodel.qdoc:120: (qdoc) warning: Unknown macro 'endcode'
/home/paul/source/qt/qt5/qtdatavis3d/src/datavisualization/data/qbar3dseries.cpp:258: (qdoc) warning: Unknown macro 'endcode'
/home/paul/source/qt/qt5/qtdatavis3d/src/datavisualization/data/qbar3dseries.cpp:258: (qdoc) warning: Missing '\endcode'

The first line is:

\code GraphDataGenerator generator(graph, tableWidget); \endcode

It seems the macro expansion causes some confusion, where QDoc interprets the \endcode as a macro rather than command. This causes a mismatch between \code and \endcode commands throughout the document.

This likely affects multi documents, thus the priority.