Description

The following code initiliatizes a databricks.sdk.core.Config when the value inst is None

This causes a bug in UCX when we load and save the WorkspaceConfig as that data classes has a databricks.sdk.core.Config attribute which is by default None and after loading it became databricks.sdk.core.Config(**{}). This field causes issues when it the config is used by our RuntimeContext which expects a different config than our cli context.

Reproduce

workspace_context: WorkspaceContext  # Created by the Databricks cli
config = workspace_context.installation.load(WorkspaceConfig)
workspace_context.installation.save(config)