[Reportbug-maint] Bug#642414: Happens to me

[Mu]

I can confirm I still have this problem on debian testing.

reportbug freezes whenever I do one of the following:

* Switch to another window.
* Resize the window.
* Switch to a text console withe Ctrl+Alt+F1
* Try to review the bugs.

In other words: if I do something appart from entering text or
clicking "Continue".

Answering to a previous question: it does not print anything in console.