Error on filter when not exist a value

[miyagidaniel]

when applying a filter from a host that exists, only the selected host is returned.

when applying a filter from a host that doesn't exist, all metrics for the hosts are returned.

this problem happens in the combinations below

grafana 8.4.0
plugin 4.2.5

grafana 8.2.6
plugin 4.2.1

[thiagotkt]

When the host does not exist, the Group filter is being ignored... Palliatively if set the Application filter to null and Host that does not exist return No data...

[stvolinko]

I was able to reproduce this in my instalation:
Grafana: v8.2.6
zabbix-plugin 4.2.5
zabbix: v5.0.19

[GauthierSgds]

Same problem on grafana 8.3.7, zabbix 5.2.7 and plugin 4.2.5

[alexanderzobnin]

Hi! Looks like the same issue as #1427. So it's fixed and will be included in next patch release.