fix(mm): json schema for unknownmodelconfig

Author: psychedelicious

invokeai/backend/model_manager/config.py

@@ -139,7 +139,7 @@ class ModelConfigBase(ABC, BaseModel):
 
     @staticmethod
     def json_schema_extra(schema: dict[str, Any]) -> None:
-        schema["required"].extend(["key", "base", "type", "format"])
+        schema["required"].extend(["key", "type", "format"])
 
     model_config = ConfigDict(validate_assignment=True, json_schema_extra=json_schema_extra)
 
@@ -175,7 +175,7 @@ def __init_subclass__(cls, **kwargs):
         if issubclass(cls, LegacyProbeMixin):
             ModelConfigBase.USING_LEGACY_PROBE.add(cls)
         # Cannot use `elif isinstance(cls, UnknownModelConfig)` because UnknownModelConfig is not defined yet
-        elif cls.__name__ != "UnknownModelConfig":
+        else:
             ModelConfigBase.USING_CLASSIFY_API.add(cls)
 
     @staticmethod
@@ -290,6 +290,12 @@ def matches(cls, mod: ModelOnDisk) -> bool:
     def parse(cls, mod: ModelOnDisk) -> dict[str, Any]:
         return {}
 
+    @staticmethod
+    def json_schema_extra(schema: dict[str, Any]) -> None:
+        schema["required"] = list(set(schema["required"].extend(["key", "base", "type", "format"])))
+
+    model_config = ConfigDict(validate_assignment=True, json_schema_extra=json_schema_extra)
+
 
 class CheckpointConfigBase(ABC, BaseModel):
     """Base class for checkpoint-style models."""