Meta mismatch error on Sequence number, xdcr bidirectional replication while running "make xdcr-merge"

Seeing mismatches on Sequence number meta information on make xdcr-merge

Destination Sequence Num:1 Error Count1292
[2012-09-08 11:24:10,940] - [task:873] ERROR - Source (Seqno: 2, CAS: 861903598553, Exp: 0, Flag: 0)
[2012-09-08 11:24:10,940] - [task:875] ERROR - Dest (Seqno: 1, CAS: 861903598552, Exp: 0, Flag: 0)
[2012-09-08 11:24:10,940] - [task:870] ERROR - Mismatch on sequence numbers for key loadOne4419 Source Sequence Num:2 Destination Sequence Num:1 Error Count1293
[2012-09-08 11:24:10,941] - [task:873] ERROR - Source (Seqno: 2, CAS: 861425654958, Exp: 0, Flag: 0)
[2012-09-08 11:24:10,941] - [task:875] ERROR - Dest (Seqno: 1, CAS: 861425654957, Exp: 0, Flag: 0)
[2012-09-08 11:24:10,941] - [task:870] ERROR - Mismatch on sequence numbers for key loadOne4702 Source Sequence Num:2 Destination Sequence Num:1 Error Count1294

_with_failover_master ==============

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FAIL: load_with_failover_master (xdcr.biXDCR.bidirectional)
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Traceback (most recent call last):
File "pytests/xdcr/biXDCR.py", line 312, in load_with_failover_master
self.verify_xdcr_stats(self.src_nodes, self.dest_nodes)
File "pytests/xdcr/xdcrbasetests.py", line 478, in verify_xdcr_stats
self.fail("Mismatches on Meta Information on xdcr-replicated items!")
AssertionError: Mismatches on Meta Information on xdcr-replicated items!

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Ran 1 test in 193.295s

To reproduce : run make xdcr-merge
or only test load_with_failover_master (xdcr.biXDCR.bidirectional) from py-xdcrmerge.conf

Note: This test was clean until recent fixes.