When creating a new QML-Application that contains special characters, invalid source files are generated

I am about to create my first QML-Plugin. I created a new QML-component project and entered the name "xxx-plugin". Creator uses this name in many places in the new generated project. A dash ('-') is neither allowed in C++ class names nor in QML-Types. Because of this, QtCreator created a bunch of files that do not build.

I suggest one of the following workarounds:
1) Replace invalid characters with X
2) Do not accept such a project name