Correct the get ag damage function name util

src/utils/utils.jl

@@ -13,5 +13,11 @@ Return the name of the Moore agriculture GTAP damage function specification in
 model `m`. This is a small helper function useful for internals like the mcs.
 """
 function _get_mooreag_gtap(m::Model)
-    return m.md.namespace[:Agriculture].namespace[:gtap_label]
+
+    # model may not have been run yet, so need to get model parameter name to look 
+    # up the value
+    model_param_name = Mimi.get_model_param_name(m, :Agriculture, :gtap_name)
+    Agriculture_gtap = Mimi.model_param(m, model_param_name).value
+
+    return Agriculture_gtap
 end