Commented Issue: Package restore ignores package source credentials from solution nuget.config [2749]

It seems that support for hierarchical nuget.config files is not taking into account package source credentials. After copy-pasting feed credentials in the solution level $(SolutionDir)\.nuget\nuget.config file, I'd expect package restore (nuget.exe install command) to pick up these credentials in a non-interactive mode. This doesn't happen though.
Comments: We should pick up the .nuget\nuget.config when running package restore.