Formatting the PowerShell script removes necessary pipe operator `|`

System Details

System Details Output

### VSCode version: 1.51.1 e5a624b788d92b8d34d1392e4c4d9789406efe8f x64

### VSCode extensions:
janisdd.vscode-edit-csv@0.6.0
ms-python.python@2021.2.633441544
ms-toolsai.jupyter@2021.2.576440691
ms-vscode.cpptools@1.1.3
ms-vscode.hexeditor@1.3.0
ms-vscode.powershell@2020.6.0
redhat.vscode-commons@0.0.6
redhat.vscode-xml@0.16.1


### PSES version: 2.2.0.0

### PowerShell version:

Name                           Value
----                           -----
PSVersion                      7.1.3
PSEdition                      Core
GitCommitId                    7.1.3
OS                             Microsoft Windows 10.0.19043
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Issue Description

Create a PowerShell file, input following script, and hit Alt+Shift+F. The pipe operator in $a | ForEach-Object { $_ } is removed.

$a=@('a','b','c')
$b=@{
    a=1
    b=2
    c=3
}
$b | Select-Object -Property ($a | ForEach-Object { $_ })

Related settings in settings.json:

    "powershell.codeFormatting.trimWhitespaceAroundPipe": true,
    "powershell.codeFormatting.useCorrectCasing": true,
    "powershell.codeFormatting.whitespaceBetweenParameters": true,

Expected Behaviour

The format result should look like:

$a = @('a', 'b', 'c')
$b = @{
    a = 1
    b = 2
    c = 3
}
$b | Select-Object -Property ($a | ForEach-Object { $_ })

Actual Behaviour

The format result is (note that the | is missing):

$a = @('a', 'b', 'c')
$b = @{
    a = 1
    b = 2
    c = 3
}
$b | Select-Object -Property ($a ForEach-Object { $_ })

Reproduce the formatter issue using the PowerShell script and formatting settings shown in the issue, then trace the PowerShell formatting entry point that handles nested pipe expressions. Done means the inner | is preserved in the formatted output and a regression test covers this example; the issue names no source file or existing test.