by the fact that the GATKSAMRecord, by design, needs to both inherit from
SAMRecord and wrap a 'member' SAMRecord, and method calls that aren't
implemented as explicit passthroughs can compromise the content of the
SAMRecord in subtle ways.
Will be automatically fixed when Picard moves to a lightweight SAMRecord
interface rather than the current heavyweight implementation. But in
the short-term, there's no obvious fix.
git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@4489 348d0f76-0448-11de-a6fe-93d51630548a