Minor bugfix for description tab

1-symbol fix for correct redrawing highlighted cursor.

Bug description:
1) put 30 symbols as character name
2) erase some symbols
3) see two cursors:
![two highlighted cursors](https://f.cloud.github.com/assets/5421954/1459478/c454dcdc-43dc-11e3-8da8-871056c5c72e.png)