skip-dependent-resources option not working

It appears that 'skip-dependent-resources' option in rest_v2 export service is not working?

http://community.jaspersoft.com/documentation/tibco-jasperreports-server...

I did the following:

% cat export-6.2.1.json 
{
  "uris": ["/organizations/organization_1/reports"],
  "parameters": ["skip-dependent-resources"]
}

% curl -XPOST -d @export-6.2.1.json "https://superuser:superuser@localhost:8777/jasperserver-pro/rest_v2/export" -k -H "content-type: application/json"
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><state><id>fe08c4d8-54b3-4f36-9361-86f0170620d8</id><message>Export in progress.</message><phase>inprogress</phase></state>

% curl "https://superuser:superuser@localhost:8777/jasperserver-pro/rest_v2/expo..." -k
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><state><id>fe08c4d8-54b3-4f36-9361-86f0170620d8</id><message>Export succeeded.</message><phase>finished</phase></state>

% wget "https://superuser:superuser@localhost:8777/jasperserver-pro/rest_v2/expo..." --no-check-certificate

The export.zip still contains datasources and images (that I put in a folder called shared_resources) referenced by the reports.

resources/organizations/organization_1/datasources/...

resources/organizations/organization_1/shared_resources

I am expecting only resources/organizations/organization_1/reports directory in the zip. Am I missing something?

JasperServer version: 6.2.1