### 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_
x-pack/plugin/mapper-aggregate-metric/src/test/java/org/elasticsearch/xpack/aggregatemetric/mapper/AggregateDoubleMetricFieldMapperTests.java
* Test parsing a value_count metric written as double with some decimal digits
     */
    public void testInvalidDoubleValueCount() throws Exception {
        DocumentMapper mapper = createDocumentMapper(fieldMapping(this::minimalMapping));
        Exception e = expectThrows(
            MapperParsingException.class,
            () -> mapper.parse(
                source(b -> b.startObject("field").field("min", 10.0).field("max", 50.0).field("value_count", 77.33).endObject())
            )
        );
        assertThat(
            e.getCause().getMessage(),
            containsString("failed to parse field [field.value_count] of type [integer] in document with id '1'.")
        );
    }
    /**
     * Test parsing a metric and check the min max value
     */
    public void testCheckMinMaxValue() throws Exception {
        DocumentMapper mapper = createDocumentMapper(fieldMapping(this::minimalMapping));
        
        Exception e = expectThrows(
            MapperParsingException.class,
            () -> mapper.parse(
                source(b -> b.startObject("field").field("min", 50.0).field("max", 10.0).field("value_count", 14).endObject())
            )
        );
        assertThat(e.getCause().getMessage(), containsString("Aggregate metric field [field] max value cannot be smaller than min value"));
        
        mapper.parse(source(b -> b.startObject("field").field("min", 50.0).field("max", 50.0).field("value_count", 14).endObject()));