Crash when adding file to target

• create a dummy CMake project
• change the add_executable line in the CMakeLists.txt to "add_executable()". Save and ignore the error, or don't save.
• Add e.g. a C++ source files with the wizard. Click through with the defaults, including adding it to the project

-> QtC crashes in CMakeBuildSystem::addSrcFiles,
const std::string target_name = function->Arguments().front().Value;

"function" is the add_executable call, but since that doesn't have any arguments, Arguments().front() leads to a crash.