fix - passing None as data account should be handled gracefully #44939
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simorenoh
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Jan 30, 2026
Co-authored-by: Simon Moreno <30335873+simorenoh@users.noreply.github.com>
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* Remove ApiKey usage * Add -TestAuth flag to verify Bearer token authentication * TEMP: Enable TestAuthOnly for pipeline testing * Remove testing logs * Additional clean up * Keep apikey fallback while migrating * Keep migration to new endpoint * Keep migration to new endpoint * Feedback --------- Co-authored-by: Alitzel Mendez <almend@microsoft.com>
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The _aenter_used flag was introduced in SDK 4.14.2 to optimize the async with pattern. It tracks whether the CosmosClient was initialized using the async context manager (async with CosmosClient(...) as client)
When using async with, the SDK's aenter method fetches the database account before calling force_refresh_on_startup(). The _aenter_used flag tells the SDK "the database account was already fetched, don't fetch it again."
The problem occurs when external code calls force_refresh_on_startup(None) directly: this results in an AttributeError: 'NoneType' object has no attribute '_WritableLocations'