id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
8944,MT import causes empty feed,hailin,anonymous," $line .= ""\n""; L442 in wp-admin/import/mt.php causes an issue in feed: when there is no excerpt, it inserts \n in post_excerpt, and since it's no longer empty, the_excerpt_rss() will return \n, resulting in blank rss <description> entry. 

I think saving \n to db is not very good (although it probably doesn't hurt). 
A safe fix is just to do: 

 if( !empty($line) ) 
    $line .= ""\n""; 

Thanks to sivel for discussions on IRC. 
",defect (bug),closed,normal,2.7.1,General,,normal,fixed,,