unity 3.6.6-0ubuntu1, Ubuntu Natty
1. Open the Dash.
2. Type some text.
3. Press Shift+Left to select some of the text.
4. Press Ctrl+C.
What happens: The text you typed is replaced with a placeholder glyph containing the numbers "0 0 0 3".
What should happen: The text should be copied, as it would be in a native text field.