Created attachment 642414 [details]
storage.log

Description of problem:

There is an issue in automatic partitioning and mdadm raid0 volumes.
If one selects each disks individually, there is no issue.
If one selects the two disks, then in the 'PRESERVE/SHRINK/DELETE' dialog one press 'CANCEL', something bad happens. Anaconda returns to the MAIN HUB, but
the 'begin installation' button is UNLOCKED and AUTOMATIC PARTITIONING is selected while it was not really intended. :-(

Version-Release number of selected component (if applicable):
F18b TC8

How reproducible:
always

Steps to Reproduce:

0. Boot and go to STORAGE: INSTALLATION DESTINATION and select both TWO disks

1. Reclaim Space (leave default LVM selection)

2. Hit 'Cancel' to not to reclaim anything

3. Anaconda returns to the MAIN HUB and INSTALLATION DESTINATION has AUTOMATIC PARTITIONING selected with the 'begin installation' button UNLOCKED.

This does not happen when selecting each disk individually.
  
Actual results:
potential data loss, since 'begin installation' is UNLOCKED and the user has not 'accepted' anything yet.

Expected results:
do not permit to launch the installation process

Additional info:
The guest has previous mdadm raid volumes.