Edited Issue: [2.3] portable library reference not added correctly with nuget.exe -includereferencedprojects [3111]

I have a portable library 1 (targeting net45+win8) and references another portable library 2(targeting win+net45+sl50+wp80).
nuget pack PortableClassLibrary1.csproj -includereferencedprojects -verbosity detailed

Added file 'lib\portable-net45+wp80\PortableClassLibrary1.dll'.
Added file 'lib\portable-win+net45+sl50+wp80\PortableClassLibrary2.dll'.

Which doesn’t seem to be right to me.
Portablelibrary2 should have been dropped in portable-net45+wp80 otherwise it won’t be added as a reference if user installs this package on project targeting net45+wp80