Tags search does not work in ui-plugin-find-license

Overview:

Searching for licenses by tag from the plugin does not work
Steps to Reproduce:

1. Tag a license with a tag
2. Create new Agreement
3. Click "Add license" button in New agreement form
4. Click "Link license"
5. In modal search/sort, scroll to "Tags" filter, select tag
6. Whatever tags value selected, see that the GET is for: /licenses/licenses?filters=status.value%3D%3Dactive&filters=tags.value%3D%3Dundefined&perPage=100&sort=name%3Basc&stats=true

Expected Results: that the tagged license is retrieved
Actual Results: tagged license not retrieved (tag value/label not being passed correctly in GET params)