The `AbstractXContentFilteringTestCase#testDotsAndDoubleWildcardInExcludedFieldName` test (all subclasses) is failing. It is no longer failing due to invalid JSON (that was fixed by the upgrade to jackson 2.13.0), but it looks like it is failing to apply exclusions correctly.
libs/x-content/impl/src/main/java/org/elasticsearch/xcontent/provider/XContentParserConfigurationImpl.java
public static final XContentParserConfigurationImpl EMPTY = new XContentParserConfigurationImpl(
        NamedXContentRegistry.EMPTY,
        DeprecationHandler.THROW_UNSUPPORTED_OPERATION,
        RestApiVersion.current(),
        null,
        null,
        false
    );
    final NamedXContentRegistry registry;
    final DeprecationHandler deprecationHandler;
    final RestApiVersion restApiVersion;
    final FilterPath[] includes;
    final FilterPath[] excludes;
    final boolean filtersMatchFieldNamesWithDots;
    private XContentParserConfigurationImpl(
        NamedXContentRegistry registry,
        DeprecationHandler deprecationHandler,
        RestApiVersion restApiVersion,
        FilterPath[] includes,
        FilterPath[] excludes,
        boolean filtersMatchFieldNamesWithDots