grafana opennms datasource query returns incorrect values.
Start with query that correctly returns all selected nodes:
Now add another pattern matching eight (8) nodes to the query:
Not only does it not find all 8 grus nodes, it no longer returns all hellboys!
Removing everything except grus% from the query correctly returns all 8 of them!
It seems the query result is limited to a maximum of ten (10). No matter how many nodes match the query, only a maximum of 10 will be returned.