Console application terminal output is lost

Not sure if this is a debugger bug: it was discovered when beta-testing CDB on Windows, but maybe it's actually an integrated terminal bug instead.

Steps to reproduce:

• Open tests/manual/debugger/cli-io/cli-io.pro from the Qt Creator repo
• Make sure you have "Run in terminal" checkbox in the project run settings checked
• Try running the application.

More often than not, the terminal will contain no output other than just 

Process exited with code: 0.

Sometimes however the application output appears: see the attached clip.

Note that it makes seemingly no difference if the project is built in Debug or Release modes.