Powershell: Help cmdlet fails in PS 6.1.0-preview.1 when StrictMode is enabled

[kborowinski]

Steps to reproduce

Set-StrictMode -Version Latest
help

or

Set-StrictMode -Version Latest
man

Expected behavior

TOPIC                                                    
    PowerShell Help System                               

SHORT DESCRIPTION                                        
    Displays help about PowerShell cmdlets and concepts. 
...

Actual behavior

PSMessageDetails      :
Exception             : System.Management.Automation.RuntimeException: The variable '$moreArgs' cannot be retrieved because it has not been set.
                           at System.Management.Automation.VariableOps.GetVariableValue(VariablePath variablePath, ExecutionContext executionContext, VariableExpressionAst varAst)
                           at System.Management.Automation.Interpreter.FuncCallInstruction`4.Run(InterpretedFrame frame)
                           at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
TargetObject          : moreArgs
CategoryInfo          : InvalidOperation: (moreArgs:String) [], RuntimeException
FullyQualifiedErrorId : VariableIsUndefined
ErrorDetails          :
InvocationInfo        : System.Management.Automation.InvocationInfo
ScriptStackTrace      : at <ScriptBlock>, <No file>: line 24
                        at <ScriptBlock>, <No file>: line 69
                        at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo : {}

Environment data

Name                           Value
----                           -----
PSVersion                      6.1.0-preview.1
PSEdition                      Core
GitCommitId                    v6.1.0-preview.1
OS                             Microsoft Windows 10.0.16299
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[iSazonov]

It is seem related with more function.

[mklement0]

On a meta note: Implementation of RFC0003-Lexical-Strict-Mode.md would presumably make such problems go away.

[iSazonov]

@kborowinski Can you confirm with latest build that the issue fixed?

[kborowinski]

@iSazonov Works as expected on latest nightly build v6.1.0-preview.9301 on Windows 10.0.17134.1 x64

[iSazonov]

@kborowinski Thanks for confirmation and contribution!