Regenerating Fix

hi,
after changing width and height to medium image size, the regenerate function told me that images with images size exists.

I founded the problem in the file class.admin.php at line 623
I moved this code before foreach and not after.

// Only if not all sizes
			if( is_array( $thumbnails ) ) {
				// Fill the array with the other sizes not have to be done
				foreach( $meta_datas['sizes'] as $name => $fsize ) {
					$metadata['sizes'][$name] = $fsize;
				}
			}

After this change everything worked as expected.
Hope this help.
.g

http://wordpress.org/extend/plugins/simple-image-sizes/