Sometimes I want to delete a discovered item.
I then need to find the item in configuration and delete it.
Because I'm a bit lazy I don't select the actual host, but I select a host group.
Also I'm interested if other hosts in that group have this item discovered.

Configuration => Hosts and I choose a certain group.
I then select "item" of an arbitrary host in that group.

In items I clear the "Hosts" field, I select the group in "Host groups" and I fill in a keyword in "Key"

I will then get all the items in this Host group with that certain key.

All is well up to here.

But when I then delete a discovered item from 1 of the hosts the screen returns with +All +hosts (not respecting the field "Host groups".
It does however respect the value in "Key"