SFSBs left in invalid/inconsistent state if @PrePassivate throws an exception/error.

If one of the SFSBs within a given bean group throws an exception from @PrePassivate, this has the effect of aborting passivation of the bean group - however, @PrePassivate may have already completed successfully on some bean in the group. Thus, we need to trigger @PostActivate on these beans lest they be left in an invalid/inconsistent state for the next invocation.