Set-GPPGroup -DeleteAllUsers or -DeleteAllGroups parameters produce error when policy contains multiple groups

[Borgquite]

Consider this scenario:

New-GPPGroup -GPOName "TEST GPO" -Update -Name "Administrators"
Set-GPPGroup -GPOName "TEST GPO" -Name "Administrators" -DeleteAllUsers -DeleteAllGroups
New-GPPGroup -GPOName "TEST GPO" -Update -Name "Remote Desktop Users"
Set-GPPGroup -GPOName "TEST GPO" -Name "Remote Desktop Users" -DeleteAllUsers -DeleteAllGroups

The 'Administrators' group will be created correctly with Delete all users and Delete all groups set

The 'Remote Desktop Users' group will be created twice, and the second command will error out:

Exception calling "Remove" with "1" argument(s): "Collection was of a fixed size."
At C:\Program Files\WindowsPowerShell\Modules\PSGPPreferences\0.2.0\Groups\Remove-GPPGroupsItem.ps1:117 char:21
+                     [void]$WorkObjects.Remove($ObjectToRemove)
+                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : NotSupportedException

Seems that Set-GPPGroup can't handle multiple groups in a single policy

[exchange12rocks]

Thanks you Chris! Appreciate your bug reports!

[exchange12rocks]

Could you please check out the dev branch?

[Borgquite]

Hey, just tested, that seems to be working fine.

Thanks for the swift reply! This module shows a lot of promise, please do keep developing! I'll post a few more bugs in a minute.