QDoc: 5.4 QDoc doesn't list C++ and QML page in the toc of .qhp files

The qch files don't have the proper links to the C++ and QML types pages because in the .qhp file, the ToC is incomplete.

In 5.3: (http://doc-snapshot.qt-project.org/qt5-5.3/qtpositioning.qhp)

<section ref="qtpositioning-index.html" title="Qt Positioning">
<section ref="qtpositioning-module.html" title="C++ Classes">
<section ref="qgeoaddress.html" title="QGeoAddress Class Reference">

In 5.4: (http://doc-snapshot.qt-project.org/qt5-dev/qtpositioning.qhp)
<section ref="qtpositioning-index.html" title="Qt Positioning">
<section ref="" title="C++ Classes">
<section ref="qgeoaddress.html" title="QGeoAddress Class Reference">

See the section about "C++ Classes", the ref attribute is missing. The same is observed for the QML types page.