### Description

This is a followup to #85926.

As part of the ingest processing pipeline, we call `CollectionUtils.ensureNoSelfReferences(...)` to ensure that a script processor didn't accidentally introduce a circular object. However, this check is only necessary if we know there was the potential for a circular option, which can only happen with either a custom processor (a plugin where we have no control), or a script processor. We should be able to only call this sanity check if we know we need it, rather than for every document.
server/src/main/java/org/elasticsearch/action/index/IndexRequest.java
requireAlias = false;
        }
        if (in.getVersion().onOrAfter(Version.V_7_13_0)) {
            dynamicTemplates = in.readMap(StreamInput::readString, StreamInput::readString);
        }
    }
    public IndexRequest() {
        super(NO_SHARD_ID);
    }
    /**
     * Constructs a new index request against the specific index. The
     * {@link #source(byte[], XContentType)} must be set.
     */
    public IndexRequest(String index) {
        super(NO_SHARD_ID);
        this.index = index;
    }
    @Override
    public ActionRequestValidationException validate() {
        ActionRequestValidationException validationException = super.validate();
        if (source == null) {
            validationException = addValidationError("source is missing", validationException);
        }
        if (contentType == null) {
            validationException = addValidationError("content type is missing", validationException);
        }
        assert opType == OpType.INDEX || opType == OpType.CREATE : "unexpected op-type: " + opType;
        final long resolvedVersion = resolveVersionDefaults();
        if (opType == OpType.CREATE) {
            if (versionType != VersionType.INTERNAL) {