Issue with multy-template triggers

[leosat]

Greetings, sirs!

The issue is described here

https://support.zabbix.com/browse/ZBX-4681

and also here

https://support.zabbix.com/browse/ZBX-4575

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Having Zabbix 1.8.10, 1.8.9
If I create complex trigger with Items from multiple templates,
the trigger does not work.
Please, respond and/or resolve this...

Our environment relies on this functionality (!).... We really need complex triggers with multiple items from different templates work!

I'd appreciate if any comments are given from developers or users, thanks.

Best regards, Leonid.