[windows] Rebalance exited with reason {{bulk_set_vbucket_state_failed, {{badmatch,wrong_rebalancer_pid}

Rebalance exited with reason {{bulk_set_vbucket_state_failed, {{badmatch,wrong_rebalancer_pid} while rebalancing 1 node in and 1 node out.

Test to reproduce:

./testrunner -i vm-list.ini -t rebalance.rebalanceinout.RebalanceInOutTests.rebalance_in_out_at_once,default_bucket=True,standard_buckets=1,sasl_buckets=1,rep
licas=1,nodes_init=3,nodes_in=1,nodes_out=1,items=1000000,max_verify=50000

<0.21430.0>:ns_orchestrator:handle_info:319]Rebalance exited with reason {{bulk_set_vbucket_state_failed,
[{'ns_1@10.131.33.89',
{'EXIT',
{{badmatch,wrong_rebalancer_pid},

[error_logger:error,2013-03-20T4:31:25.652,ns_1@10.142.174.97:error_logger<0.6.0>:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
crasher:
initial call: ns_single_vbucket_mover:mover/6
pid: <0.7423.136>
registered_name: []
exception error: {bulk_set_vbucket_state_failed,
[{'ns_1@10.131.33.89',
{'EXIT',
{{badmatch,wrong_rebalancer_pid},
[

{janitor_agent,set_vbucket_state,7},
{janitor_agent,'-bulk_set_vbucket_state/4-fun-0-', 4},
{misc,'-parallel_map/3-fun-0-',4}]}}}]}



[error_logger:error,2013-03-20T4:31:25.839,ns_1@10.142.174.97:error_logger<0.6.0>:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
crasher:
initial call: ns_vbucket_mover:init/1
pid: <0.13602.135>
registered_name: []
exception exit: {{bulk_set_vbucket_state_failed,
[{'ns_1@10.131.33.89',
{'EXIT',
{{badmatch,wrong_rebalancer_pid},
[{janitor_agent,set_vbucket_state,7}

,

{janitor_agent,'-bulk_set_vbucket_state/4-fun-0-', 4}

,

{misc,'-parallel_map/3-fun-0-',4}

]}}}]},

Attaching collect_info and testrunner logs.