ORA-02292 in target when UPDATE operation modifying the partition key column issued (4244116)

When a child table has a referential integrity constraint for the parent table, UPDATE operation in source could cause ORA-02292 error in target.

-- TARGET
-- event_log

Error    2013-05-13 16:59:57.738581 4230 1095809344 s:2 Poster: 12070 - OCITransCommit failed with ORA-2091.  (posting from src, queue source, to target) [module osp]
Error    2013-05-13 16:59:57.738839 4230 1095809344 s:2 Poster: failed to commit transaction session 2 in CommitFunc(): ORA-02091: transaction rolled back.ORA-02292: integrity constraint (SCOTT.FK1IESV_PURCHASE_INFO_PM) violated - child record found. Will exit Post..  (posting from src, queue source, to target) [module opo]
Notice   2013-05-13 16:59:57.739952 4230 15013584 Poster: Last committed SCN 21750334.  (posting from src, queue source, to target) [module opo]
Info     2013-05-13 16:59:57.743666 3376 2431998352 Poster exited with code=1, pid = 4230  (posting from src, queue source, to target)