### Elasticsearch Version

main

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

all

### Problem Description

When you configure an `aggregate_metric_double` with `ignore_malformed: true` and send a malformed value we create an `_ignored` field with three values, `field.value_count`, `field.min`, and `field.max`. This is the only top "composite" field that creates `_ignored` values for its children. Things like shape only create `field` in `_ignored`. Is there a good reason for `aggregate_metric_double` to be different?

### Steps to Reproduce

see above

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/index/mapper/NumberFieldMapper.java
boolean hasDocValues,
            SearchExecutionContext context,
            boolean isIndexed
        );
        public abstract Number parse(XContentParser parser, boolean coerce) throws IOException;
        public abstract Number parse(Object value, boolean coerce);
        public abstract Number parsePoint(byte[] value);
        /**
         * Maps the given {@code value} to one or more Lucene field values ands them to the given {@code document} under the given
         * {@code name}.
         *
         * @param document document to add fields to
         * @param name field name
         * @param value value to map
         * @param indexed whether or not the field is indexed
         * @param docValued whether or not doc values should be added
         * @param stored whether or not the field is stored
         */
        public abstract void addFields(
            LuceneDocument document,
            String name,
            Number value,
            boolean indexed,
            boolean docValued,
            boolean stored
        );
        public FieldValues<Number> compile(String fieldName, Script script, ScriptCompiler compiler) {
            
            throw new IllegalArgumentException("Unknown parameter [script] for mapper [" + fieldName + "]");
        }