fix(profile-resolve):handle unspecified aggregate parameters

Signed-off-by: Michael Davie <mldavie@amazon.com>

trestle/core/control_interface.py

@@ -713,7 +713,8 @@ def _param_values_assignment_str(
             param_str = ControlInterface._param_selection_as_str(param, True, False)
         # otherwise use param aggregated values if present
         if not param_str:
-            param_str = ControlInterface._param_as_aggregated_value(param, param_dict, True, False)
+            if any(as_list(param_dict[prop.value].values) for prop in as_list(param.props) if prop.value in param_dict):
+                param_str = ControlInterface._param_as_aggregated_value(param, param_dict, True, False)
         # finally use label and param_id as fallbacks
         if not param_str:
             param_str = param.label if param.label else param.id