Crash after changing the name in the project explorer

1. Open the supplied project
2. Change the name of myclass.h to myclass2.h in the project explorer
-> Crash or sometimes it simply hangs endlessly

There is a popup with the message:

"The file /home/marco/dev/qt-creator-master/src/plugins/examplebrowser/source/changevaluestatementbuilder.h was renamed to /home/marco/dev/qt-creator-master/src/plugins/examplebrowser/source/changevaluesstatementbuilder.h, but the project file source could not be automatically changed."

It is working if the files are in the same directory as the pro file which looks quite strange.