Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues.
• Refer to the FAQ.
• Refer to Differences between Windows PowerShell 5.1 and PowerShell.

Steps to reproduce

The issue manifests whenever a function contains a block (if, foreach, try,...), which writes some output and then calls return. All output from the block is written into the output pipeline, even if the output of the block should be redirected into a variable, or a pipeline inside the function:

function x([switch]$p) {
    $null = foreach ($a in @(1)) {
        echo "this should not be visible"
        if ($p) {return}
    }
}

function y([switch]$p) {
    $null = try {echo "this should not be visible"; if ($p) {return}} catch {}
}

Expected behavior

PS> x
PS> y
PS> x -p
PS> y -p

Actual behavior

PS> x
PS> y
PS> x -p
this should not be visible
PS> y -p
this should not be visible

Error details

No response

Environment data

Name                           Value
----                           -----
PSVersion                      7.3.0-preview.6
PSEdition                      Core
GitCommitId                    7.3.0-preview.6
OS                             Microsoft Windows 10.0.19044
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Visuals

No response