Fake out the generic builder so that search containers never appear to be "empty"

suite/browser/src/nsInternetSearchService.cpp

@@ -618,6 +618,14 @@ InternetSearchDataSource::GetTarget(nsIRDFResource *source,
 		source = trueEngine;
 	}
 	
+	if (isSearchURI(source) && (property == kNC_Child))
+	{
+		// fake out the generic builder (i.e. return anything in this case)
+		// so that search containers never appear to be empty
+		*target = source;
+		return(NS_OK);
+	}
+
 	if (mInner)
 	{
 		rv = mInner->GetTarget(source, property, tv, target);

xpfe/components/search/src/nsInternetSearchService.cpp

@@ -618,6 +618,14 @@ InternetSearchDataSource::GetTarget(nsIRDFResource *source,
 		source = trueEngine;
 	}
 	
+	if (isSearchURI(source) && (property == kNC_Child))
+	{
+		// fake out the generic builder (i.e. return anything in this case)
+		// so that search containers never appear to be empty
+		*target = source;
+		return(NS_OK);
+	}
+
 	if (mInner)
 	{
 		rv = mInner->GetTarget(source, property, tv, target);