snactor discover doesn't detect tags and topics

[vojtechsokol]

Reproducer:
Create new repository with tag and/or topic:

$ snactor repo new NewRepo
New repository NewRepo has been created in /home/user/NewRepo
$ snactor new-tag Tag
New tag Tag has been created in /home/user/NewRepo/tags/tag.py
$ snactor new-topic Topic
New topic Topic has been created in /home/user/NewRepo/topics/topic.py

Running snactor discover doesn't detect the created tag and topic:

$ snactor discover
Repository:
  Name: NewRepo
  Path: /home/user/NewRepo

Actors(0):

Models(0):

Tags(0):

Topics(0):

Workflows(0):

Expected behavior:

$ snactor discover
Repository:
  Name: NewRepo
  Path: /home/user/NewRepo

Actors(0):

Models(0):

Tags(1):
   - Tag                          tags/tag.py

Topics(1):
   - Topic                        topics/topic.py

Workflows(0):

Note:
When creating new workflow, workflow tag is automatically created:

$ snactor workflow new Workflow
New tag WorkflowTag has been created in /home/user/NewRepo/tags/workflow.py
New workflow Workflow has been created in /home/user/NewRepo/workflows/workflow.py

However this tag is detected by snactor discover but with wrong path:

$ snactor discover
Repository:
  Name: NewRepo
  Path: /home/user/NewRepo

Actors(0):

Models(0):

Tags(1):
   - WorkflowTag                         workflows/workflow.py

Topics(0):

Workflows(1):
   - Workflow                            workflows/workflow.py

[vojtechsokol]

The problem is probably in the special names of created tags and topics - when the name of the created tag is Tag, the resulting code for the tag is

class Tag(Tag):

And the same problem has topic with name Topic and model with name Model. The snactor command should therefore prohibit creating objects with same name as their base class, even for actors and workflows where the snactor discover command works as expected.