Preconditions:
Exist only one host "Zabbix server" and "Zabbix servers" group

Steps to reproduce:
1. Go to Monitoring->Graphs (and other pages, where exist host and host group selects with option all/not selected)
2. Choose first option in selects: Group:all , Host:all, Graph:not selected
3. Go to Monitoring->Screens (Map - trigger element, Dashboard widgets)
4. Add new screen with element - graph, press "Select" button to choose graph in popup

Actual result: empty popup without any graphs for Zabbix server host, because remembered host selection from Graph page
Expected result: available graphs of Zabbix server host in popup