No output from qDebug in run tool subwindow

Hi all,

Since update to KDevelop 5.2.3 there is no output from qDebug() in the run 
tool output subwindow for normal program execution of cmake projects.  In 
debug mode qDebug prints to the debug subwindow. If I start the program in the 
konsole subwindow it also prints the qDebug output correctly.

Interestingly, it works for qmake projects as expected.

Is qDebug output configurabel somehow? Or is the wanted behavior of KDevelop? 
I tryed already to play with QT_LOGGING_RULES env var. But that changed 
nothing.

Thanks
Hartmut