CBQE-0: biXDCR.load_with_failover_then_add_back: fixing trivail issues

Change-Id: I46021534ebde7ec2b950f9ea3ec01bc3d1cf83c1
Reviewed-on: http://review.couchbase.org/31346
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>