Excessive BR tags added.

I just started to experiment with the ckeditor.  I am getting some strange results.  I am seeing an excessive amount of br tags added to my output.  I traced it to the toDataFormat function of the dataprocessor.  I tried calling the toDataFormat function by itself and you can see the results below.  I haven't altered any of the settings or code from the download.  I simply added a ckeditor to my page and specified it to use the htmlwriter and htmldataprocessor plugins.  Is there a setting that needs to be changed or is this some kind of bug?

INPUT DATA

<address><table border="0" cellpadding="1" cellspacing="1" summary="" width="100%"><tbody><tr><td><p align="left">thing1<br/>
<span style="font-size: 12px;">thing2<br/>
nothing to worry about</span></p></td><td>g</td></tr><tr><td>g<br/>
g<br/>
g</td><td>g</td></tr></tbody></table><em>testphrase<br/>
Address1<br/>
Address2<br/>
telephone</em><br/>
</address>

OUTPUT DATA

<address><table border="0" cellpadding="1" cellspacing="1" summary="" width="100%"><tbody><tr><td><p align="left">thing1<br/> <span style="font-size: 12px;">thing2<br/> nothing to worry about</br/></span></br/></p></td><td>g</td></tr><tr><td>g<br/><br/><br/> g<br/> g</br/></br/></br/></br/></td><td>g</td></tr></tbody></table><em>testphrase<br/><br/><br/><br/><br/> Address1<br/> Address2<br/> telephone</br/></br/></br/></br/></br/></br/></br/></em><br/><br/><br/><br/><br/><br/><br/><br/> </br/></br/></br/></br/></br/></br/></br/></br/></address>