Provisiond accepts multiple primary SNMP interfaces

Provisiond accepts node definitions with two primary tagged snmp interfaces.

<node node-label="test" foreign-id="test">
 <interface ip-addr="192.168.0.10" snmp-primary="P">
  <monitored-service service-name="ICMP"/>
 </interface>
 <interface ip-addr="62.209.55.22" snmp-primary="P">
  <monitored-service service-name="ICMP"/>
  <monitored-service service-name="SNMP"/>
 </interface>
</node>

The result is, that OpenNMS does not collect any interface table metrics from this device without any hint why (or maybe I didn't find one).

We really have too many places why a collection can fail. See here: https://opennms.discourse.group/t/troubleshoot-performance-data-collection-from-snmp-agents/
It was not obvious to search in provisiond for a collection issue.

I think provisiond should complain about not valid node definitions and raise an alarm, so a administrator is able to notice it somehow.
But it should import all other nodes with correct definitions in that case.