Description of problem:
I was testing the fix for bug 174597 when I ran into this.  I used a kickstart
file (different box from the one used for 174597, so somewhat different
kickstart file too) to specify partitioning and all, but set it to interactive mode.

The first question was on what kind of partitioning scheme I wanted.  I didn't
want it to use the free space for the default partitioning, but rather for it to
follow the custom partitioning I'd specified in the kickstart file.  So I
changed the option and proceeded to disk druid.  None of the mount points were
configured, and every partition was set as preserved.  Huh?

So I went back and selected the default choice, then proceeded to disk druid
again.  Surprise, everything was fine!  So bug 174597 is fixed, after all!

Figuring I'd investigate what was going on with the non-default choice, I went
back once again, selected custom layout and proceeded to disk druid.  Once
again, it was all messed up.  But then, when I went back and chose `use free
space, default layout' and proceeded to disk druid, decided to go ahead with the
install this time, I got the attached exception.

Version-Release number of selected component (if applicable):
anaconda-10.92.4-1

How reproducible:
Haven't tried

Steps to Reproduce:
1.Use a kickstart file to specify partitioning
2.Select custom layout and move to disk druid, then go back
3.Select default layout, move forward and then back
4.Repeat 2 and 3
  
Actual results:
Exception, as attached

Expected results:
No such exception

Additional info:
I can provide the kickstart file easily, if it's of any use, but I assume all
the needed info might already be in the dump file.

I've edited the crash dump file replacing passwords with <omitted>.  There were
two occurrences:

              intf.icw.id.instClass.ksparser.handler.ksdata.rootpw: {'password':
<omitted>, 'isCrypted': True}
              intf.icw.id.instClass.ksparser.handler.ksdata.bootloader:
{'upgrade': False, 'forceLBA': False, 'md5pass': <omitted>, 'driveorder': [],
'appendLine': , 'location': partition, 'password': }