xHostsFile: won't let me have identical hostnames with different adresses

Details of the scenario you tried and the problem that is occurring:
The DSC configuration that is using the resource (as detailed as possible):
Hi

I am trying to run this:

xHostsFile pool01
{
    HostName  = 'sfbpool1.domain.com'
    IPAddress = '10.0.5.210'
    Ensure    = 'Present'
}

xHostsFile pool02
{
    HostName  = 'sfbpool1.domain.com'
    IPAddress = '10.0.5.211'
    Ensure    = 'Present'
}

Meant to simulate round robin DNS. But xHostsFile fails with this message:

Test-ConflictingResources : A conflict was detected between resources '[xHostsFile]pool01 (C:\Script\dsc\SkypeForBusinessDSC.ps1::292::9::xHostsFile)' and '[xHostsFile]pool02 (C:\Script\dsc\SkypeForBusinessDSC.ps1::299::9::xHostsFile)' in node 'Edge01.domain.com'. Resources have identical key properties but there are differences in the following non-key properties: 'IPAddress'. Values '10.0.5.210' don't match values '10.0.5.211'. Please update these property values so that they are identical in both cases.

Version of the Operating System and PowerShell the DSC Target Node is running:
Windows Server 2016 Standard 1607

Version of the DSC module you're using, or 'dev' if you're using current dev branch:
5.4.0.0

Start by reproducing the provided xHostsFile configuration on the stated Windows Server 2016 and PowerShell DSC versions. Inspect how xHostsFile identifies key properties and how DSC reports the conflicting resources; done means identical hostnames can be configured with different IPAddress values without this conflict.