Steps to reproduce:
- On the home screen introduce a new favorite tag
- Click on the Add button
- Click on the newly added favorite tag
- Go back in the browser window
- Verify that the newly added favorite tag isn't there.
If, for instance, after adding the new favorite tag I click on the StackOverflow icon, I'll go once again to the home screen and the newly added tag will be there. Different behaviors for the same kind of action.