[windows] Queries with stale=false shows errors {case_clause,{error,eacces}} ( rebalance test of 4->3 nodes when queries are run during rebalancing is hung )

can be reproduced by -t viewquerytests.ViewQueryTests.test_employee_dataset_stale_queries,limit=10000,docs-per-day=20

data structure:
200K
documents are structured as

{"name": name<string>, "join_yr" : year<int>, "join_mo" : month<int>, "join_day" : day<int>, "email": email<string>, "job_title" : title<string>, "type" : type<string>, "desc" : desc<tring>}

6 ddocs\6 views(1 view per ddoc):
test_view-3bca385
test_view-43f2b58
test_view-101c11b
test_view-a81a852
test_view-d1adba8
test_view-7a99269

map\reduce functions:
'function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^UI "); if(doc.job_title.match(myregexp))

{ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}}}'
'function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^System "); if(doc.job_title.match(myregexp)){ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}

}}'
'function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^Senior "); if(doc.job_title.match(myregexp))

{ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}}}'
'function (doc) { if(doc.job_title !== undefined) emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] ); }'
'function (doc) { if(doc.job_title !== undefined) emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] ); }' + _count as reduce fn
'function (doc, meta) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^admin"); if(meta.id.match(myregexp)) { emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}

}}'

exact query example:
http://10.1.3.147:8092/default/_design/test_view-a81a852/_view/test_view-a81a852?debug=true&connection_timeout=60000&limit=10000&stale=false

response:
{case_clause, {error, eacces}}

in logs in see updater error:
[couchdb:error,2012-09-13T11:28:41.955,ns_1@10.1.3.147:<0.14095.7>:couch_log:error:42]Set view `default`, main group `_design/test_view-a81a852`, doc loader error
error:
stacktrace: [

{couch_db,fast_reads,2}

,

{couch_set_view_updater,'-load_changes/7-fun-2-',6}

,

{lists,foldl,3}

,

{couch_set_view_updater,load_changes,7}

,

{couch_set_view_updater,'-update/7-fun-2-',10}

]