Hello,
Could you please check the following behavior and suggest how to fix it?
Scenario:
- Add Japanese IME to have a possibility to enter EM (full-width) space;
 - Open the design tab, start a new line from EM space, add a few symbols;
 - Switch to the HTML tab.
 
Expected behavior:
EM space is converted to  
Actual behavior:
EM space is removed
Please take a look at the reproducing scenario on the demo page: http://screencast.com/t/o8JwCGrj
