Fix failures in engine_selection_deferred_executor.js due to disabled IFR

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 9.0.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Query Execution
    • Fully Compatible
    • ALL
    • QE 2026-07-06
    • 200
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      noPassthrough on enterprise-rhel-8-64-bit-dynamic-roll-back-incremental-feature-flags

      Host: i-02e472ee4051b77b2, i-04fc55de75de2fe00
      Project: mongodb-mongo-master
      Commit: 4474aa81
      Please refer to BF(G) Playbook for instructions on handling BF and BFG tickets as well as Auto-Resolution Rules

      Failing Test Logs:

      Task Logs:

      Mongo Shell Failed to Load

      Logs:

      Error: expected "classic" to equal "sbe"
+ expected - actual

-"classic"
+"sbe"
failed to load: jstests/noPassthrough/query/engine_selection_deferred_executor.js
exiting with code -3

      logs

      Mongo Shell Failed to Load

      Logs:

      2026-06-17T07:06:49.073Z assert: expected "classic" to equal "sbe"
+ expected - actual

-"classic"
+"sbe"
_getErrorWithCode@src/mongo/shell/utils.js:32:13
doassert@src/mongo/shell/assert.js:48:14
_doassert@src/mongo/shell/assert.js:182:13
assert.eq@src/mongo/shell/assert.js:310:14
@jstests/noPassthrough/query/engine_selection_deferred_executor.js:48:8

      logs

      Mongo Shell Assert JS

      Logs:

      [jsTest] doassert@src/mongo/shell/assert.js:48:14

      logs

      Mongo Shell Assert JS

      Logs:

      2026-06-17T09:56:32.541Z assert: expected 0 to equal 1
+ expected - actual

-0
+1
: Counter 'hashLookup' delta was 0, expected 1
_getErrorWithCode@src/mongo/shell/utils.js:32:13
doassert@src/mongo/shell/assert.js:48:14
_doassert@src/mongo/shell/assert.js:182:13
assert.eq@src/mongo/shell/assert.js:310:14
assertCounterIncrement@jstests/noPassthrough/query/lookup/lookup_unwind_metrics.js:110:16
@jstests/noPassthrough/query/lookup/lookup_unwind_metrics.js:126:31
run@/data/mci/04dd3e20eff0c922c6b125033d493520/src/jstests/libs/mochalite.js:368:31

      logs

      Mongo Shell Assert JS

      Logs:

      uncaught exception: Error: 13 failing tests detected :
report@/data/mci/04dd3e20eff0c922c6b125033d493520/src/jstests/libs/mochalite.js:127:19
runTests@/data/mci/04dd3e20eff0c922c6b125033d493520/src/jstests/libs/mochalite.js:578:18

      logs

      Repro Artifacts:

            Assignee:
            Lyublena Antova
            Reporter:
            Lyublena Antova
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated:
              Resolved: