I've created a host and a web scenario for it. After that I've added a discovery rule with a trigger prototype, that contains a prototype item and a web item in the expression. When I try to full clone the host, I get the following error:

Incorrect item key "web-host2-clone1:web.test.fail[dd]" provided for trigger expression.
Cannot implode expression "

{web-host2-clone1:web.test.fail[dd].last(0)}

=0&

{web-host2-clone1:lld-item1.last(0)}

=0". [CDiscoveryRule.copy -> CDiscoveryRule.copyDiscoveryRule -> CDiscoveryRule.copyDiscoveryTriggers -> CTriggerPrototype.create -> CTriggerPrototype.createReal]

Trigger prototypes with web items should not be cloned.