Description of Problem:
When specifying a RAID1 swap device in the kickstart file, Anaconda fails with a
"TypeError: number coercion failed" message (Anaconda dump attached).

How Reproducible:
With attached ks.cfg file.

Additional information:
The same ks.cfg file with only the swap parts non-RAID1 works fine.  Diff output

32,33c32,35
< part raid.71 --size 1050 --ondisk hda
< part raid.72 --size 1050 --ondisk hdb
---
> #part raid.71 --size 1050 --ondisk hda
> #part raid.72 --size 1050 --ondisk hdb
> part swap --size 1050 --ondisk hda
> part swap --size 1050 --ondisk hdb
42c44
< raid swap      --level 1 --device md7 raid.71 raid.72
---
> #raid swap      --level 1 --device md7 raid.71 raid.72