Description of problem:
On an environment with a RHEV infrastructure provider and an OpenStack cloud provider, I'd like to limit some user to the latter. However, if I use the group assigned filters feature to limit visibility to the openstack provider (hosts & clusters), no images or instances will be visible to the user, no even if the user should have visibility to this objects according to the smart tags used.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Configure CloudForms with a RHEV 3.5 infrastructure provider and an RHEL-OSP 6 cloud provider
2. For the "Provisioning Scope" category, add a tag named "dev".
3. Apply "dev" and "all" tags to the openstack provider, at least 1 availability zone, 1 tenant, 1 flavor, 1 security group and 1 image. 
4. Create a group (eg. openstack-group), with role EvmRole-user_self_service
5. Filter this group to Provisioning Scope=dev and Hosts&clusters=<openstack provider name>
6. Create a user (eg. dev) and include him in the group
7. log as the user, navigate to Cloud->Instances->Images

Actual results:
No images are visible to the user, even the ones with Provisioning Scope = dev

Expected results:
Images tagged with Provisioning Scope = dev should be visible to the user.

Additional info:
If the Hosts & Clusters = <openstack provider> filter is removed from the group, the user will have visibility to the tagged images. However, the user will also have visibility to the RHEV provider, if same tags are used.

As a workaround, I'm using different tags for openstack and rhev providers, but this doesn't seem to be optimal, considering there's an option in the UI to automatically filter resources based on providers.