PATCH operations fail on multi-valued primitive attributes (e.g., list[str])

[vishmahajan]

scim2-models supports defining multi-valued primitive fields on extensions (e.g., list[str] | None), and the tutorial documents this as valid. However, scim2-server's PATCH operators crash when processing these fields because parse_new_value and model_validate_from_dict assume the field's root type is always a BaseModel subclass.

Reproduction:
Define an extension with a multi-valued primitive:

  class MyExtension(Extension):
      tags: list[str] | None = None

PATCH replace with a list of strings:

  {                                                                    
    "schemas": ["urn:ietf:params:scim:api:messages:2.0:PatchOp"],
    "Operations": [                                                                                                           
      {
        "op": "replace",                                                                                                      
        "path": "urn:example:schemas:MyExtension:tags",                
        "value": ["tag1", "tag2"]                                                                                             
      }
    ]                                                                                                                         
  }                        

Result: 400 invalidValue

[azmeuk]

This is fixed in version 0.1.9
Is the similar ticket in scim2-models valid?

[vishmahajan]

Yes, its the same ticket. Sorry, I accidentally raised it on the wrong repo,