Steps to reproduce:
1. Add a campaign
2. Fill in the fields and click save and continue
3. Edit the campaign name. Do not click Save
4. Go to the Promotions tab
5. Add a new promotion
6. Go back to the Campaign Details
Expected behavior: the campaign name is that of step 3.
Current behavior: the campaign name is that of step 2.
If data may be lost when switching tabs, the user should be warned before closing the initial view.