Github user MikeThomsen commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2969#discussion_r212991535
--- Diff:
nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-services/src/main/java/org/apache/nifi/mongodb/MongoDBLookupService.java
---
@@ -83,6 +84,7 @@
.displayName("Projection")
.description("Specifies a projection for limiting which fields
will be returned.")
.required(false)
--- End diff --
It has no validator, ergo it is invalid according to the test framework.
---
