Filter name disappear (problems, hosts) when you switch page after making changes in filter form (apply not update). Appears on postgresql. 

Steps to reproduce:

1. Create filter in Monitoring->Problems
2. Create filter in Monitoring->Hosts
3. Make changes in created Problems filter. (filter name change font to italic)
4. Then click on "Home" tab.
5. Click on monitoring->Hosts page.
6. Return back to Monitoring->Problems

Result:
Empty filter name.

 
Expected:
Filter name exists.