Parameter starting with colon (:) is expanded with working directory.

[no1xsyzy]

Only happens when spawning other processes, any parameter starting with colon (:) is expanded with working dir if not wrapped by single quote (').

I tried existing pre-release in this repo and found that the problem is between v7.1.3..v7.2.0-preview.1, though I do not have compiling environment at hand for bisecting deeper. aur/powershell-preview-bin 7.2.0.preview.5-1 also bugs. Results from ProcMon maybe help?

More information can be found here (SuperUser question).

Steps to reproduce

PS D:\path > cmd /c "echo" ":foo"
PS D:\path > cmd /c "echo" ':foo'

Expected behavior

:foo
:foo

Actual behavior

D:\path\:foo
:foo

Environment data

Name                           Value
----                           -----
PSVersion                      7.2.0-preview.4
PSEdition                      Core
GitCommitId                    7.2.0-preview.4
OS                             Microsoft Windows 10.0.19042
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[iSazonov]

@mklement0 Could you please clarify? Dup?

[mklement0]

@iSazonov: It's a bug in the experimental PSNativePSPathResolution feature; the duplicate is #13640

[no1xsyzy]

Yes, confirmed to be a duplicate. I think better to keep it for future search?
If so, should add (Dup of #13640, keep for search) to the title?

[iSazonov]

@no1xsyzy No need, cross-links already present.