address comments

renku/command/schema/workflow_file.py

@@ -15,6 +15,9 @@
 # limitations under the License.
 """Represent workflow file run templates."""
 
+from itertools import chain
+from typing import List, Union
+
 import marshmallow
 
 from renku.command.schema.calamus import fields, prov, renku, schema
@@ -34,12 +37,15 @@ class Meta:
         unknown = marshmallow.EXCLUDE
 
     @marshmallow.pre_dump(pass_many=True)
-    def fix_ids(self, objs, many, **kwargs):
+    def fix_ids(self, objs: Union[WorkflowFilePlan, List[WorkflowFilePlan]], many, **kwargs):
         """Renku up to 2.4.1 had a bug that created wrong ids for workflow file entities, this fixes those on export."""
 
         def _replace_id(obj):
             obj.unfreeze()
             obj.id = obj.id.replace("//plans/", "/")
+
+            for child in chain(obj.inputs, obj.outputs, obj.parameters):
+                child.id = child.id.replace("//plans/", "/")
             obj.freeze()
 
         if many: