Created Issue: [2.2 regression] GetPackageCollapsesPackageVersionsForListAvailable fails [2856]

$packages = Get-Package -ListAvailable jQuery
$packagesWithMoreThanOne = $packages | group "Id" | Where { $_.count -gt 1 }

returns following in 2.1 packageswithoutmorethanone is null.

Count Name Group
----- ---- -----
2 jQuery {jQuery 1.8.2, jQuery 1.8.3}