Select with ">" does not work when using gsi index for certain datasets

./testrunner -i test.ini -t 2i.indexscans_2i.SecondaryIndexingScanTests.test_multi_create_query_explain_drop_index,groups=simple:greater_than:no_orderby_groupby:range,dataset=default,doc-per-day=1,use_gsi_for_primary=True,use_gsi_for_secondary=True,skip_cleanup=True

1. Create 1 node cluster with all services
2. Add default bucket with 2016 items for employee data set
3. Create GSI index on a field "join_yr"
4. query using select * from default where join_yr > 1999

Step 4 returns empty result set

Sample:

{
"tasks_points":

{ "task1": 1, "task2": 1 }

,
"name": "employee-9",
"mutated": 0,
"skills": [
"skill2010",
"skill2011"
],
"join_day": 9,
"join_mo": 10,
"email": "9-mail@couchbase.com",
"test_rate": 10.1,
"join_yr": 2011,
"_id": "query-testemployee10153.1877827-0",
"VMs": [

{ "RAM": 10, "os": "ubuntu", "name": "vm_10", "memory": 10 }

,

{ "RAM": 10, "os": "windows", "name": "vm_11", "memory": 10 }

],
"job_title": "Engineer"
}