New-Alias / Set-Alias shouldn't allow the alias target to be the same as the alias name.

[mklement0]

Prerequisites

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• Refer to Differences between Windows PowerShell 5.1 and PowerShell.

Steps to reproduce

Defining an alias whose target names is the same as the alias' itself makes no sense, yet:

• such a definition is currently quietly accepted.
• then fails on invocation.

# Note: 'oss' is a built-in *function*

Set-Alias oss oss

oss -?

Expected behavior

The Set-Alias call should fail.

Actual behavior

The Set-Alias definition is quietly accepted.

On trying to invoke the alias, a "is not recognized as a name of a cmdlet, function, script file, or executable program." error occurs.

Error details

No response

Environment data

PowerShell 7.4.0-preview.4

Visuals

No response