[CI] SearchServiceSingleNodeTests class failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #21837 / part1
• elasticsearch-intake #21828 / part1
• elasticsearch-pull-request #67954 / part-1
• elasticsearch-pull-request #67943 / part-1
• elasticsearch-pull-request #67935 / part-1
• elasticsearch-pull-request #67935 / part-1
• elasticsearch-periodic-platform-support #7677 / almalinux-8-aarch64_checkpart1_platform-support-arm
• elasticsearch-periodic #7655 / openjdk17_checkpart1_java-fips-matrix
• elasticsearch-periodic #7655 / openjdk22_checkpart1_java-matrix
• elasticsearch-periodic-platform-support #7677 / ubuntu-2004_platform-support-unix

Reproduction Line:

./gradlew ":server:test" --tests "org.elasticsearch.search.SearchServiceSingleNodeTests.testClearOnClose" -Dtests.seed=D40DBFA4162D9646 -Dtests.locale=zh-Hant-HK -Dtests.timezone=Pacific/Johnston -Druntime.java=24

Applicable branches:
8.x

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.elasticsearch.ResourceAlreadyExistsException: index [index/PLm4KcIsTyafVpZN74pk4Q] already exists

Issue Reasons:

• [8.x] 2 consecutive failures in step part1
• [8.x] 2 consecutive failures in pipeline elasticsearch-intake
• [8.x] 13 failures in class org.elasticsearch.search.SearchServiceSingleNodeTests (10.4% fail rate in 125 executions)
• [8.x] 2 failures in step part1 (18.2% fail rate in 11 executions)
• [8.x] 4 failures in step part-1 (19.0% fail rate in 21 executions)
• [8.x] 2 failures in pipeline elasticsearch-intake (18.2% fail rate in 11 executions)
• [8.x] 3 failures in pipeline elasticsearch-pull-request (15.0% fail rate in 20 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-search-foundations (Team:Search Foundations)

[nicktindall]

Seems to be related to 235867c @original-brownbear (when I revert that the failure goes away, I just saw the word "context" and figured it might have been related)

reliable repro line:

./gradlew ":server:test" --tests "org.elasticsearch.search.SearchServiceSingleNodeTests" -Dtests.seed=D0D32F476E9AC680

Without the seed it sometimes passes

[drempapis]

In the SearchServiceSingleNodeTests class, there are two tests currently muted in both the main and 8.x branches,
and github issues have been created #126812 and #126813

- class: org.elasticsearch.search.SearchServiceSingleNodeTests.testBeforeShardLockDuringShardCreate 
- class: org.elasticsearch.search.SearchServiceSingleNodeTests.testLookUpSearchContext

Closing this one by linking the comment