RelationFieldDisplay was estabilishing a dependency on
RecordTableContext which is not right as FieldDisplay can be loaded
outside of RecordTable context
I'm using an util directly but understand this is a bit heavier than
before in term of performance. If we want to pre-compute this, we will
need to be a bit smarter.
Also the previous code based on fieldName was not right, we should check
relationObjectMetadataItem instead
9c325eb0ef