Relation: Report the containing asset when warning about a wildcard relation that expanded to nothing.
Relation: Report the containing asset when warning about a wildcard relation that expanded to nothing.

papandreou/assetgraph,jscinoz/assetgraph,jscinoz/assetgraph,assetgraph/assetgraph,slang800/assetgraph,slang800/assetgraph,papandreou/assetgraph,jscinoz/assetgraph,papandreou/assetgraph