bug#24915: alignment not working

"Sobel-Sorenson, Chandler - (scar)" <[email protected]>
Newsgroups gmane.comp.gnu.parted.bugs
Message-ID <[email protected]> 
I'm trying to make a new partition but the alignment isn't working.  I've started parted with: parted -a optimal /dev/sda.  Then:

 (parted) mkpart                                                           
Partition name?  []? variables                                            
File system type?  [ext2]? ext4                                           
Start? 0                                                                  
End? 4g                                                                   
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? 

Am i doing something wrong here?
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