Search Documents nightly test runs are failing with:

Stack trace：
Cannot read properties of undefined (reading 'deleteIndex')
TypeError: Cannot read properties of undefined (reading 'deleteIndex')
at Context. (/Users/runner/work/1/s/sdk/search/search-documents/test/public/node/searchClient.spec.ts:2:35)
at callFn (/Users/runner/work/1/s/common/temp/node_modules/.pnpm/mocha@10.7.0/node_modules/mocha/lib/runnable.js:364:21)
at Hook.Runnable.run (/Users/runner/work/1/s/common/temp/node_modules/.pnpm/mocha@10.7.0/node_modules/mocha/lib/runnable.js:352:5)
at next (/Users/runner/work/1/s/common/temp/node_modules/.pnpm/mocha@10.7.0/node_modules/mocha/lib/runner.js:509:10)
at Immediate. (/Users/runner/work/1/s/common/temp/node_modules/.pnpm/mocha@10.7.0/node_modules/mocha/lib/runner.js:570:5)
at processImmediate (node:internal/timers:483:21)

For more details check here:
https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4015619&view=results