(1) The same issue in Items configuration
Steps to reproduce:
Go to Monitoring->Problems,
find recent Problem in the list, click on Time or Recovery time, in Event source details find Problem expression and click on Item
Change Item, click Update button.

Result:
Form is saved, user is navigated to Configuration->Host->Items.
Expected:
After form saving user should be navigated to Event details, where he has chosen Item.

(2)
Issue also actual for Host inventory
Steps to reproduce:
Go to Monitoring->Problems,
find recent Problem in the list, click on Host, in host menu choose Host inventory.
Click Cancel button.
Result:
User is navigated to Inventory->Host inventory page
Expected:
User should be navigated to Monitoring->Problems, where he has chosen Host inventory menu .

(3)
Issue also actual for Reports -> Notifications

Steps to reproduce:
Go to Reports -> Notifications
Below the table find media types links: all ( Email / Jabber / SMS )
Click any of them (Email or Jabber or SMS)
Change smth in form (or don't).
Click Update or Cancel.

Result:
User is navigated to Administration-> Media Types page

Expected:
User is navigated to Reports -> Notifications page

(4)
Open Dashboard.
Find Data overview widget (Hosts on Left)
Click on Host, choose Host inventory form in action menu
Press Cancel in host Inventory form

or
Find Map widget in the Dashboard
Find Host item on Map
Call Host action menu
Choose Host inventory form
Press Cancel in host Inventory form

or
Find Trigger overview (Hosts on Left)
Click on Host, choose Host inventory form in action menu
Press Cancel in host Inventory form

Result:
User is navigated to Host inventory page

Expected:
User is navigated to Dashboard

(5)
Open Dashboard.
Find Trigger overview widget
Click Host/Trigger cell action menu
Choose Configuration form in action menu
Press Update or Cancel in Trigger configuration form

Result:
User is navigated to Configuration - Host -Triggers page

Expected:
User is navigated to Dashboard