Import-DscResource breaks with multiple copies of the same module on the system

[Tadas]

Steps to reproduce

# Install the same module to two different paths that are in $env:PSModulePath e.g.
> Get-Module -ListAvailable -FullyQualifiedName xActiveDirectory

    Directory: D:\Temp\a


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   2.17.0.0   xActiveDirectory


    Directory: D:\Temp\b


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   2.17.0.0   xActiveDirectory


# and try to use this module in a DSC config
Configuration DSCImportTest { Import-DscResource -ModuleName xActiveDirectory }

Expected behavior

All DSC resources are imported from xActiveDirectory. Because -ModuleVersion wasn't specified I'd expect the first encountered instance of the module to be imported regardless of the version.

Actual behavior

At line:1 char:31
+ ... ion DSCImportTest { Import-DscResource -ModuleName xActiveDirectory }
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Multiple versions of the module 'xActiveDirectory' were found. You can run 'Get-Module -ListAvailable -FullyQualifiedName xActiveDirectory' to see available versions on the system, and then use the fully qualified name '@{ModuleName="xActiveDirectory"; RequiredVersion="Version"}'.
+ CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : MultipleModuleEntriesFoundDuringParse

Environment data

> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      6.0.1
PSEdition                      Core
GitCommitId                    v6.0.1
OS                             Microsoft Windows 10.0.17101
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[ThomasNieto]

@StevenBucher98 / @anmenaga can this be moved/closed since the cmdlet isn't in this repository?