Steps to reproduce:

1. Navigate to Configuration -> Hosts and create a host.
2. Open the list of hosts in another browser tab.
3. Check the checkbox to select the host in both browser tabs.
4. Delete the host in one of the browser tabs.
5. In the other browser tab press F5 or click on Hosts in the main menu,

Result:
"1 selected" is displayed before the button list and all the buttons remain active.

The problem can be repeated in many places, i.e. Applications, Items, Actions etc.

 Pressing buttons may result in unexpected results.

Expected:
"0 selected" and disabled buttons.