I don't get the point of this bug. The functionality to write out the domain-realm mappings is not in RHEL5 and won't be.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release.
Thank you for the information. We don't have such a broad knowledge of features across the RHEL versions so this is the way how we deal with failing PolicyCheck tests on older RHELs. Thank you again, now the bug met its purpose, closing as notabug.