[CI] FieldExtractorIT testTextFieldWithIpSubfield failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #8731 / 8.13.4_bwc
• elasticsearch-periodic #8725 / 8.14.3_bwc
• elasticsearch-periodic #8719 / 8.12.2_bwc
• elasticsearch-periodic #8713 / 8.12.2_bwc
• elasticsearch-periodic #8707 / 8.12.2_bwc

Reproduction Line:

./gradlew ":x-pack:plugin:esql:qa:server:mixed-cluster:v8.13.4#javaRestTest" -Dtests.class="org.elasticsearch.xpack.esql.qa.mixed.FieldExtractorIT" -Dtests.method="testTextFieldWithIpSubfield" -Dtests.seed=6798382E054B547F -Dtests.bwc=true -Dtests.locale=ast-ES -Dtests.timezone=Asia/Srednekolymsk -Druntime.java=24

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Expected a map containing
columns: a list containing
        0: a map containing
       type: "text"
       name: "text_field"
        1: a map containing
       type: "ip"
       name: "text_field.ip"
 values: a list containing
        0: a list containing
          0: "94.175.247.139"
          1: expected "94.175.247.139" but was null

Issue Reasons:

• [8.19] 5 failures in test testTextFieldWithIpSubfield (3.6% fail rate in 138 executions)
• [8.19] 3 failures in step 8.12.2_bwc (75.0% fail rate in 4 executions)
• [8.19] 5 failures in pipeline elasticsearch-periodic (100.0% fail rate in 5 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)