xSQLServerAlwaysOnAvailabilityGroupDatabaseMembership: Parameter "DatabaseName" should be case insensitive

[nabrond]

Details of the scenario you tried and the problem that is occurring:
The property DatabaseName should not use a case-sensitive test to determine whether a database name matches the specified value or pattern.

The DSC configuration that is using the resource (as detailed as possible):

Configuration SampleConfig 
{
    Import-DscResource -ModuleName xSQLServer -Name xSQLServerAlwaysOnAvailabilityGroupDatabaseMembership

    Node localhost 
    {
        xSQLServerAlwaysOnAvailabilityGroupDatabaseMembership 'TestAG-Database-Members'
        {
            AvailabilityGroupName = 'TestAG'
            BackupPath = 'C:\SQL\Backup'
            DatabaseName = 'MyDB'
            SQLInstanceName = 'MSSQLSERVER'
            SQLServer = 'localhost'
            Ensure = 'Present'
        }
    }
}

This configuration should match any combination of case for the name "MyDB". However, only database matching the exact case are considered.

Version of the Operating System, SQL Server and PowerShell the DSC Target Node is running:
Operating System: Windows Server 2012 R2
PowerShell Version: 5.0

What module (SqlServer or SQLPS) and which version of the module the DSC Target Node is running:
SQLPS (130)

Version of the DSC module you're using, or 'dev' if you're using current dev branch:
8.2.0.0

[randomnote1]

Working this one.