SwaggerEditor@next: unexpected completion for $ref with YAML comment

[char0n]

Originally reported in https://github.com/swagger-api/swagger-editor/issues/3216#issuecomment-1526096630

Here is a completion case that behaves unexpectably:

$ref: <cursor CTRL+B># comment

Instead of $ref suggestions, it gives us Schema Object fields suggestion.

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Steps To Reproduce

https://github.com/swagger-api/swagger-editor/assets/193286/9115e720-7efa-4d3a-8339-078e4b703c1b

Expected behavior would be to see the completion of available pointers.