Please describe the problem:
If you add a Text object to a diagram and press the numpad enter key to start a new line, the following text is not shown. However, the text is printed, with a large vertical gap between the two lines.

Steps to reproduce:
1. Create a new diagram and add a Text object.
2. Type text into the text object, press the Enter key on the number pad and type some more text, e.g. type "ABC", then <Numpad Enter>, then "DEF".
3. Press Escape to leave edit mode.
4. Print the diagram (or just export a PostScript file).

Actual results:
The diagram on screen only shows "ABC". The printed digram shows "ABC" and "DEF" with a large vertical gap between them.

Expected results:
The on-screen and printed diagram to show:
  ABC
  DEF
The same as when the normal/main Enter key is pressed.

Does this happen every time?
Yes.

Other information:
When the text object is clicked on the status bar shows it as 'ABC[000D]DEF' where [000D] is shown as the hex of an unprintable character.