Fix anyof and oneof inside additional properties.

[sempostma]

Reasons for making this change

oneOf and anyOf properties are not working properly inside additional properties.

Checklist

• [ ] I'm updating documentation
  • [ ] I've checked the rendering of the Markdown text I've added
• [x] I'm adding or updating code
  • [x] I've added and/or updated tests
  • [ ] I've updated docs if needed
• [ ] I'm adding a new feature
  • [ ] I've updated the playground with an example use of the feature

[sempostma]

@epicfaace I have added the tests in https://github.com/rjsf-team/react-jsonschema-form/pull/1588/commits/9be4b1a4d15ba9afa980045a46c5cc6e10b217a1.

[sempostma]

@epicfaace Is this still awaiting review?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Please leave a comment if this is still an issue for you. Thank you.

[memalloc]

This is stil an issue and applying this fix using patch-package seems to reliably resolve it (at least in my use case and for @rjsf/core 4.1.1)

[heath-freenome]

@memalloc Given the changes in v5 beta, the code here needs refactoring. Is this something you are willing to do?

[heath-freenome]

Closing this PR as it is reimplemented in #3435