Entity 'Name=123_456.1' will be convert to 'Name=123456.1'

[Juliehzl]

see Azure/azure-cli#15576

Through investigation, we send the request as user provided, but server side transform the value to number.

Here is a request id for reference:

Client-Request-ID=5e0ad598-2fc6-11eb-82cd-186024942c80 Receiving Response: Server-Timestamp=Thu, 26 Nov 2020 09:04:20 GMT, Server-Request-ID=751186f9-5002-0060-1ad3-c36cab000000