Differences between Ctrl+V and pasting from pastefromword dialog
  
  
  
    
    
      - Open replacebycode sample
 - Open attached word file and copy heading (with trailing space)
 - In Editor 3.x press enter at the end of first line to insert new paragraph
 - In editor 4.x press enter 2 times e.g. in second paragraph in 
and a half ho^urs outside to split existing paragraph and insert new line
 - Paste heading with Ctrl+v and then with pastefromword dialog.
 
In first case editor doesn't filter Word code:
- Chrome - 
<h1><span lang="EN-IN">This is heading1<o:p></o:p></span></h1>
 - Opera - 
<h1><span lang="EN-IN">This is heading1</span></h1> - not sure if this is a bug. 
 - IE - 
<h1 style="margin: 24pt 0cm 0pt;"><span lang="EN-IN"><strong><font size="5"><font color="#365f91"><font face="Cambria">This is heading1<o:p></o:p></font></font></font></strong></span></h1>
 - IE - Additional issue - when using dialog IE pastes heading as paragraph (all other browsers recognize heading 1)
 
Problem can be reproduced from CKEditor 3.0 (only Firefox seems to work fine)