QMLCacheGen doesn't create a CleanupResources function

I am getting unresolved references when using "Q_CLEANUP_RESOURCE(ResourceName);" after adding CONFIG += qtquickcompiler to my .pro after updating to 5.11.0 beta.

If I have a look at qmlcache_loader.cpp it contains the following code:

int QT_MANGLE_NAMESPACE(qInitResources_ResourceName)() {
    ::unitRegistry();
    Q_INIT_RESOURCE(ResourceName_qmlcache);
    return 1;
}
Q_CONSTRUCTOR_FUNCTION(QT_MANGLE_NAMESPACE(qInitResources_ResourceName));

But does not contain a similar definition for qCleanupResources_