Insert space into table after long string fails

[Aaron Maenpaa]

1. Enter "source" mode.
2. Paste in the following table:

   <table class="Basic" style="width:50%">
   	<tbody>
   		<tr>
   			<th>Lorem</th>
   			<th>Ipsum</th>
   			<th>Dolor</th>
   		</tr>
   		<tr>
   			<td>Lorem</td>
   			<td>&nbsp;</td>
   			<td>&nbsp;</td>
   		</tr>
   	</tbody>
   </table>
   

3. Switch back to rich text mode.
4. In the middle-bottom cell paste: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
5. Double click on the 'x'es to select them.
6. Press <end>
7. Press <space>
8. Press 'a'

Expected: There's a space after the 'x'es and an 'a' Actual: The space is never inserted and the 'a' gets stuck on the end. Notes: The <end> is not strictly necessary, but it makes it repro consistently for me. Without the <end> sometimes I get the behavior I'm reporting and sometimes I get the expected behavior.

I've reproduced this in 3.6.3 (what we're using), 4.0 (the demo), and the nightly as of 2012-12-04.

[Aaron Maenpaa]

Repro's in Chrome, but not Firefox.

[Jakub Ś]

This is actually a duplicate of #9861.