vmware/pg_rewind — pull request #8 by Samrat-Revagade (2013-11-18 13:03:45+00:00)
Title: Hint bit updates screw up pg_rewind

even when checksum feature is enabled, as only first update after checkpoint is WAL logged. Rewinding from last checkpoint before the point of fork will overwrite those updates.

Refer issue:
https://github.com/vmware/pg_rewind/issues/3