Ok, I have done some tests and I see a really weird behaviuor. It only crashes when you select and cut a very specific text. Try this:
echo "siroco2::App;" > main.cpp
Then create an empty project and add main.cpp as the only source file.
Open main.cpp
Then select EXACTLY this text "siroco2::App", do not select the semicolon.
Then Ctr-X (cut) and it crashes. Any other select+cut does not crash !!!
I hope someone can reproduce this ...
Thanks
Nacho