<ProcessedOSGroup>$(OSGroup.ToLower())</ProcessedOSGroup>
<ProcessedOSGroup Condition="'$(TargetsWindows)' == 'true'">windows</ProcessedOSGroup>
<ProcessedArchGroup>$(ArchGroup.ToLower())</ProcessedArchGroup>
- <ContainerName Condition="'$(ContainerName)' == ''">corefx-$(PreReleaseLabel)-$(BuildNumberMajor)-$(BuildNumberMinor)-$(ProcessedOSGroup)-$(ProcessedArchGroup)</ContainerName>
+ <ContainerName Condition="'$(ContainerName)' == '' And '$(IsOfficial)' != ''">corefx-$(PreReleaseLabel)-$(BuildNumberMajor)-$(BuildNumberMinor)-$(ProcessedOSGroup)-$(ProcessedArchGroup)</ContainerName>
</PropertyGroup>
<Target Name="CoreFXPreCloudBuild" >