REPL messes up namespaces when Foo is used after Foo::Bar

[zoffixznet]

It looks like if Foo::Bar is loaded first, then loading Foo does not "update" the Foo namespace and it still remains the package or whatever (no idea how any of this stuff works):

2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ tree
.
├── ./Foo
│   └── ./Foo/Bar.pm6
└── ./Foo.pm6

1 directory, 2 files
2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ cat Foo/Bar.pm6 
unit class Foo::Bar;
2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ cat Foo.pm6 
unit class Foo;
2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ perl6 -I.
To exit type 'exit' or '^D'
> use Foo::Bar
Nil
> use Foo
Nil
> Foo.new
You cannot create an instance of this type (Foo)
  in block <unit> at <unknown file> line 1

> 
2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ perl6 -v
This is Rakudo version 2018.03-129-g7572983a4 built on MoarVM version 2018.03-35-gafdcad424
implementing Perl 6.c.
2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ 

2018.03.129 zoffix@VirtualBox/tmp/tmp.Bxz0IiPJW8$ perl6 -e 'class Foo::Bar {}; Foo.new'
You cannot create an instance of this type (Foo)
  in block <unit> at -e line 1