Description not showing for some fields

Describe the bug

I have a JSON schema generated by Pydantic has descriptions of certain fields. When I create a json file and validate it with the schema, the descriptions show in VSCode without exception. However, when using the YAML extension and creating a YAML file, some of the descriptions display, and some of them do not (see screenshots below).

Expected Behavior

The description should be present when hovering over all fields that contain a description in the schema.

Current Behavior

Only certain fields display the description.

Steps to Reproduce

1. Here is an example schema:

{
    "$defs": {
        "FastSpeech2TrainingConfig": {
            "$schema": "http://json-schema.org/draft-07/schema#",
            "additionalProperties": false,
            "properties": {
                "batch_size": {
                    "default": 16,
                    "description": "The number of samples to include in each batch when training. If you are running out of memory, consider lowering your batch_size.",
                    "title": "Batch Size",
                    "type": "integer"
                },
                "save_top_k_ckpts": {
                    "default": 5,
                    "description": "The number of checkpoints to save.",
                    "title": "Save Top K Ckpts",
                    "type": "integer"
                },
                "ckpt_steps": {
                    "anyOf": [{
                            "type": "integer"
                        },
                        {
                            "type": "null"
                        }
                    ],
                    "default": null,
                    "description": "The interval (in steps) for saving a checkpoint. By default checkpoints are saved every epoch using the 'ckpt_epochs' hyperparameter",
                    "title": "Ckpt Steps"
                },
                "ckpt_epochs": {
                    "anyOf": [{
                            "type": "integer"
                        },
                        {
                            "type": "null"
                        }
                    ],
                    "default": 1,
                    "description": "The interval (in epochs) for saving a checkpoint. You can also save checkpoints after n steps by using 'ckpt_steps'",
                    "title": "Ckpt Epochs"
                },

                "$schema": "http://json-schema.org/draft-07/schema#"
            }
        }
    },
    "additionalProperties": false,
    "properties": {
        "path_to_model_config_file": {
            "anyOf": [{
                    "format": "file-path",
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ],
            "default": null,
            "title": "Path To Model Config File"
        },
        "training": {
            "$ref": "#/$defs/FastSpeech2TrainingConfig"
        },
        "path_to_training_config_file": {
            "anyOf": [{
                    "format": "file-path",
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ],
            "default": null,
            "title": "Path To Training Config File"
        },
        "path_to_preprocessing_config_file": {
            "anyOf": [{
                    "format": "file-path",
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ],
            "default": null,
            "title": "Path To Preprocessing Config File"
        },
        "path_to_text_config_file": {
            "anyOf": [{
                    "format": "file-path",
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ],
            "default": null,
            "title": "Path To Text Config File"
        }
    },
    "title": "FastSpeech2Config",
    "type": "object"
}

2. Create a json file:

{
    "$schema": "/path/to/the/schema/above.json",
    "training": { "ckpt_epochs": 1 }
}

3. Hover over the "ckpt_epochs" key and you will see a description:

4. Create a yaml file and associate it with the same schema, and you will see a description for some fields (i.e. batch_size shown below), but you will not see a description for others (e.g. ckpt_epochs)

Environment

Tested on macOS Monterey and Windows. For Mac:

Version: 1.84.2 (Universal)
Commit: 1a5daa3a0231a0fbba4f14db7ec463cf99d7768e
Date: 2023-11-09T10:52:33.687Z (1 wk ago)
Electron: 25.9.2
ElectronBuildId: 24603566
Chromium: 114.0.5735.289
Node.js: 18.15.0
V8: 11.4.183.29-electron.0
OS: Darwin arm64 21.6.0

• Windows
• Mac
• Linux
• other (please specify)

Start by reproducing the supplied schema in the YAML extension and compare hover results for batch_size with ckpt_epochs, especially their direct property versus anyOf and $ref structures. No source files or tests are named in the issue; done means descriptions appear when hovering every field that has a schema description, as they do in the JSON case.