Form values don't get reinitialized from defaults when toggling between anyOf/oneOf options

[mbalc]

Prerequisites

• I have searched the existing issues
• I understand that providing a SSCCE example is tremendously useful to the maintainers.
• I have read the documentation
• Ideally, I'm providing a sample JSFiddle, Codesandbox.io or preferably a shared playground link demonstrating the issue.

What theme are you using?

core

Version

5.x

Current Behavior

When one of the options from anyOf/oneOf is rendered, the default values get set properly. However, after you switch to a different option, then go back, all the defaults will be gone.

Expected Behavior

The defaults should get set every time someone changes the subschema version

Steps To Reproduce

1. Go to https://rjsf-team.github.io/react-jsonschema-form/
2. Click the "Any Of" example
3. Notice that "First method of identification" is selected, and "First name" is set to the default value, "Chuck"
4. In the render view, change to "Second method of identification"
5. In the render view, change to "First method of identification"

Current: "First name" is empty
Expected: "First name" is set to the default value, "Chuck"

Environment

- OS: Windows 11
- Node & npm: whatever you use on your playground

Anything else?

[mbalc]

nevermind, there's this "Object fields default behavior" thing that you need to change to a different value; maybe consider making it a bit more obvious that this works this way - and consider changing the default value there in the playground away from the legacy option - and you can probably close this issue

[nickgros]

@mbalc thanks for the report. The "legacy" behavior is the default in RJSF v5 (it will be changed in in the next major version), so will probably change the default value when v6 is released.

I would actually expect the firstName field to re-populate with the default value under legacy behavior, so I think this is a bug.