Freeze on editing a file

After I open my project via Qt Creator and edit main.cpp, Qt Creator freeze and memory is leaking.

steps to reproduce the issue

1. open system monitor
2. open memory-leak.qbs by Qt Creator
3. open main.cpp
4. insert a new line "vctDynamicVector<double> vector;" without double quotation marks at line #8 of main.cpp
5. open vctDynamicVector.h by pressing CTRL key and click vctDynamicVector inserted at step 4
6. monitor memory usage