Processing of .qmake.super and .qmake.conf is not done with -nocache or -cache

When calling "qmake -nocache" or "qmake -cache myqmake.cache" we have the effect, that the .qmake.super and .qmake.conf files are not processed. This can be seen, when looking at the implementation in qtbase/qmake/library/qmakeevaluator.cpp: QMakeEvaluator::prepareProject

In my project I rely on having a .qmake.conf file and my whole build process is broken, when it is not processed.

As .qmake.conf is not created by qmake I don't see why it is considered being a cache file that has to be skipped when -nocache is used. And when setting an individual cache file with -cache myqmake.cache it is even more obvious, that conf and cache files are not related.