TL;DR - Can we use title for the inlined object generated as part of the oneOf union strategy?

Disclaimer: I am opening my first issue for Smithy.

I recently started using Smithy and primarily generate Open API specifications. For context, I use Redocly for documentation generation. When using Smithy's union type, I noticed that the generated Open API spec using inline types within the oneOf attribute (default strategy). This results in the same display issue as mentioned in this Redocly/redoc issue, but is unrelated w.r.t. problem/solutions (I think). It showcases my desired outcome (display) though.

Glancing through the source code, I arrived at JsonSchemaShapeVisitor. I believe we would add title in this code block. Due to the simple fix (as I see it), I can contribute the change. However, I want to confirm this solution is "correct."

1. I understand title to be descriptive in nature, but are there other consequences/implications of this attribute? I could not understand more from the Swagger documentation though.
2. I propose to add the member name as the title. This guarantee uniqueness (within the oneOf) and makes the most sense when reading: "One of foo, bar, or baz" for the following union.

   union MyUnion {
       foo: String,
       bar: String,
       baz: String,
   } 
   

3. I have not looked at tests yet, but I expect I would add to an existing case or create a title-specific one.
4. I believe this change should be backwards compatible given the nature of title (related to my first question in this list), but I would like confirmation.

Thanks in advance!