AADGroup: Group owners are removed (while they shouldn't if the owners property is not present in the dsc config)

[bartvermeersch]

Description of the issue

When specifying an AADGroup resource without specifying members and owners, existing members are retained but owners are removed for groups that already exist.

For members a check is done on the $PSBoundParameters
if ($MembershipRuleProcessingState -ne 'On' -and $PSBoundParameters.ContainsKey('Members'))

Microsoft365DSC/Modules/Microsoft365DSC/DSCResources/MSFT_AADGroup/MSFT_AADGroup.psm1

Lines 665 to 670 in bc58574

	#Members
	if ($MembershipRuleProcessingState -ne 'On' -and $PSBoundParameters.ContainsKey('Members'))
	{
	$currentMembersValue = @()
	if ($currentParameters.Members.Length -ne 0)
	{

For owners this check is missing on line 620:

Microsoft365DSC/Modules/Microsoft365DSC/DSCResources/MSFT_AADGroup/MSFT_AADGroup.psm1

Lines 620 to 623 in bc58574

	#Owners
	$currentOwnersValue = @()
	if ($currentParameters.Owners.Length -gt 0)
	{

I would expect
if ($PSBoundParameters.ContainsKey('Owners'))
just below line 621

Microsoft 365 DSC Version

1.24.228.1

Which workloads are affected

Azure Active Directory

The DSC configuration

AADGroup "AADGroup_TEST"
        {
            DisplayName        = "TESTGROUP"
            Description        = "TESTGROUP"
            MailNickName       = "TESTGROUP"
            MailEnabled        = $false
            SecurityEnabled    = $true
            TenantId           = $TenantId
            ApplicationId      = $ApplicationId
            CertificateThumbprint = $Thumbprint
            Ensure             = "Present"
        }

Verbose logs showing the problem

No response

Environment Information + PowerShell Version

No response

[bartvermeersch]

Should be fixed by #4396