Window close button doesn't kill app

[raould]

Ubuntu 14.04 intel 32bit.
Set up the "hello lua" chipmonk project, did "cocos run -p linux" and it built and started running. The shell is blocked until the app quits.
Then I clicked on the window close/kill button.
Expected: App to quit: window to go away, and command line to return to regular prompt.
Actual: The command line didn't return to regular prompt. The app wasn't fully killed. Only the window went away. I had to ^c i the shell to really kill the app.