ignore duplicate options for selects

Author: bernt-matthias

ctdconverter/galaxy/converter.py

@@ -1268,7 +1268,12 @@ def create_param_attribute_list(param, model, supported_file_formats, parameter_
                     if is_default(fmt, param):
                         option_node.attrib["selected"] = "true"
             else:
+                unique_choices = set()
                 for choice in param.restrictions.choices:
+                    if str(choice) in unique_choices:
+                        logger.warning(f"Option {choice} of {param} is not unique.")
+                    else:
+                        unique_choices.add(str(choice))
                     option_node = add_child_node(param_node, "option",
                                                  OrderedDict([("value", str(choice))]),
                                                  text=str(choice))