Fix task cloning

trains/backend_api/services/v2_2/tasks.py

@@ -1705,6 +1705,7 @@ class CreateRequest(Request):
 
         self.assert_isinstance(value, "project", six.string_types)
         self._property_project = value
+
     @schema_property('input')
     def input(self):
         return self._property_input

trains/backend_interface/task/task.py

@@ -805,11 +805,17 @@ class Task(IdObjectBase, AccessMixin, SetupUploadMixin):
         execution = task.execution.to_dict() if task.execution else {}
         execution = ConfigTree.merge_configs(ConfigFactory.from_dict(execution),
                                              ConfigFactory.from_dict(execution_overrides or {}))
+        # clear all artifacts
+        execution['artifacts'] = [e for e in execution['artifacts'] if e.get('mode') != 'output']
+
+        if not tags and task.tags:
+            tags = [t for t in task.tags if t != cls._development_tag]
+
         req = tasks.CreateRequest(
             name=name or task.name,
             type=task.type,
-            input=task.input,
-            tags=tags if tags is not None else task.tags,
+            input=task.input if hasattr(task, 'input') else {'view': {}},
+            tags=tags,
             comment=comment or task.comment,
             parent=parent,
             project=project if project else task.project,

trains/task.py

@@ -1252,7 +1252,7 @@ class Task(_Task):
             tasks.GetAllRequest(
                 project=[project.id],
                 name=exact_match_regex(task_name),
-                only_fields=['id', 'name']
+                only_fields=['id', 'name', 'last_update']
             )
         )
         task = get_single_result(entity='task', query=task_name, results=res.response.tasks)