Tab-completion for environmental variable on Linux returns non-existent env. variable #3572
Description
Pressing TAB after $env:P returns env:PATHEXT that doesn't exist on PowerShell Core on Linux on my machine.
Steps to reproduce
PS /home/aleksandar> $env:P
Expected behavior
PS /home/aleksandar> $env:P<tab>
PATH PSModulePath PWD
Actual behavior
PS /home/aleksandar> $env:P<tab>
PATH PSModulePath PWD env:PATHEXT
Environment data
PS /home/aleksandar> $PSVersionTable
Name Value
---- -----
PSVersion 6.0.0-alpha
PSEdition Core
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 3.0.0.0
GitCommitId v6.0.0-alpha.18
CLRVersion
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1