New feature

• extraErrorsBlockSubmit on Form, see the documentation

@rjsf/core

• Updated MultiSchemaField to use mergeSchema() for merging in the remaining schema for anyOf/oneOf
• Added new extraErrorsBlockSubmit prop to Form that allows the extra asynchronous errors to block a form submit, fixing #3757

@rjsf/utils

• Updated retrieveSchemaInternal() to always resolve allOf schema without merging when expandAllBranches is set, fixing compiled schema issue always throwing error with mergeAllOf
• Updated getDefaultFormState() to use mergeSchema() for merging in the remaining schema for anyOf/oneOf
• Updated retrieveSchema() to use mergeSchema() for merging in the remaining schema for anyOf/oneOf

Dev / docs / playground

• Switched to using npm workspaces for the sub-package hierarchy
  • NOTE: Developers may need to run the npm run refresh-node-modules script first to get the build and tests to work correctly
• Backfilled Docusaurus site with documentation for v3, v4