Fixed assertion: can fetch added puppet module name

Following two tests were failing since a long time while asserting the added puppet-module from selected content-views:
- test_cv_composite_create
- test_associate_puppet_module

Issue is UI doesn't populate the added module name to assert. The only way I found is to logout after adding the module and then assert it. This way tests are working fine. I know its a workaround to fix the tests so I added a small comment that explains the reason.