[Storage] `az storage fs file upload` does not overwrite existing blob with new 0 bit files.

[calvinhzy]

Describe the bug

az storage fs file upload does not overwrite existing blob with new 0 bit files.

Related command

az storage fs file upload

Errors

Empty log, no request sent to server

Issue script & Debug output

N/A

Expected behavior

Should overwrite

Environment Summary

azure-cli 2.70.0

core 2.70.0
telemetry 1.1.0

Extensions:
application-insights 1.2.2
copilot 1.0.0b9
elastic-san 1.0.0
virtual-wan 1.0.1
copilot 1.0.0b8 (dev) C:\Users\zhiyihuang\Repos\azure-cli-extensions\src\copilot

Dependencies:
msal 1.31.2b1
azure-mgmt-resource 23.1.1

Python location 'C:\Users\zhiyihuang\Repos\py312\Scripts\python.exe'
Config directory 'C:\Users\zhiyihuang.azure'
Extensions directory 'C:\Users\zhiyihuang.azure\cliextensions'
Development extension sources:
C:\Users\zhiyihuang\Repos\azure-cli-extensions

Python (Windows) 3.12.9 (tags/v3.12.9:fdb8142, Feb 4 2025, 15:27:58) [MSC v.1942 64 bit (AMD64)]

Legal docs and information: aka.ms/AzureCliLegal

Additional context

No response

[azure-client-tools-bot-prd]

Hi @calvinhzy,

2.70.0 is not the latest Azure CLI(2.71.0).

If you haven't already attempted to do so, please upgrade to the latest Azure CLI version by following https://learn.microsoft.com/en-us/cli/azure/update-azure-cli.

[yonzhan]

Thank you for opening this issue, we will look into it.

[calvinhzy]

Pending SDK fix https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/storage/azure-storage-file-datalake/azure/storage/filedatalake/_upload_helper.py#L47-L48