store and reset original Knob value in GetMappedRange test

[flowguru]

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Code-Reviewer Section

The general pull request guidelines can be found here.

Please check each of the following things and check all boxes before accepting a PR.

• The PR has a description, explaining both the problem and the solution.
• The description mentions which forms of testing were done and the testing seems reasonable.
• Every function/class/actor that was touched is reasonably well documented.

For Release-Branches

If this PR is made against a release-branch, please also check the following:

• This change/bugfix is a cherry-pick from the next younger branch (younger release-branch or main if this is the youngest branch)
• There is a good reason why this PR needs to go into a release branch and this reason is documented (either in the description above or in a linked GitHub issue)

[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: 2331463
• Duration 0:17:32
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: f328fab
• Duration 0:09:01
• Result: ❌ FAILED
• Error: reference not found for primary source and source version f328fab05cd38c0ab25ef265970c94f3deabdf22
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: f328fab
• Duration 0:09:34
• Result: ❌ FAILED
• Error: reference not found for primary source and source version f328fab05cd38c0ab25ef265970c94f3deabdf22
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: f328fab
• Duration 0:09:42
• Result: ❌ FAILED
• Error: reference not found for primary source and source version f328fab05cd38c0ab25ef265970c94f3deabdf22
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: f328fab
• Duration 0:10:16
• Result: ❌ FAILED
• Error: reference not found for primary source and source version f328fab05cd38c0ab25ef265970c94f3deabdf22
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-macos on macOS Monterey 12.x

• Commit ID: f328fab
• Duration 0:10:54
• Result: ❌ FAILED
• Error: reference not found for primary source and source version f328fab05cd38c0ab25ef265970c94f3deabdf22
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: f7dd441
• Duration 0:20:19
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: 2331463
• Duration 0:59:08
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 2331463
• Duration 1:03:17
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: f7dd441
• Duration 0:31:32
• Result: ❌ FAILED
• Error: Error while executing command: docker push ${DEV_REGISTRY}/foundationdb/foundationdb-kubernetes-sidecar:${FDB_VERSION}-${COMMIT_SHA}-1. Reason: exit status 1
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: f7dd441
• Duration 0:38:03
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: f7dd441
• Duration 0:47:36
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)

[fdb-windows-ci]

Doxense CI Report for Windows 10

• Commit ID: f7dd441
• Result: ✔️ SUCCEEDED
• Build Logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 2331463
• Duration 1:57:51
• Result: ❌ FAILED
• Error: Error while executing command: if $(grep -q -- "--- FAIL:" ${CODEBUILD_SRC_DIR}/fdb-kubernetes-tests/logs/*.log); then echo "TESTS FAILED SEE THESE LOGS:"; echo ; grep -l -- "--- FAIL:" ${CODEBUILD_SRC_DIR}/fdb-kubernetes-tests/logs/*.log; exit 1; fi. Reason: exit status 1
• Build Logs (available for 30 days)
• Build Artifact (available for 30 days)