Could you please check again with the OpenSUSE 10 beta?
(http://www.opensuse.org/index.php/Download)

If you encounter it also there, don't forget to attach the log files:
http://www.opensuse.org/index.php/Bug_Reporting_FAQ#YaST

btw, swap partition is detected using Storage::GetTargetMap() and
Partitions::fsid_swap check for partition id.

If the swap is on a raid the check for Partitions::fsid_swap will fail since
the raid volume doe not have a partition id. For the same reason you would not
be able to detect swap on LVM logical volumes.

For such devices checking for the key "detected_fs" in the parttition map,
having the value `swap would be better. This would also be more robust for 
normal disks since there are disks e.g. on S390 which do not have any valid
partition ids.

So is it sufficient to enhance the code

filter (map p, disk["partitions"]:[], ``(
                !p["delete"]:false &&
                p["fsid"]:0 == Partitions::fsid_swap
);

to this condition:

                !p["delete"]:false &&
                (p["fsid"]:0 == Partitions::fsid_swap ||
                 p["detected_fs"]:nil == `swap)

The detection is in repair/src/OSRSwap.ycp, from line 85

Yes, this should work.

fixed version should appear in SL10.0 RC1