It happens the same to me.

On Sun, Jul 17, 2016 at 4:37 PM, Peter Uhn��k <i.uhnak@gmail.com> wrote:
�� Metacello new
�� �� baseline: 'FileDialog';
�� �� repository: 'github://peteruhnak/file-dialog/repository';
�� �� get;
�� �� load.

Using #get indeed downloads a fresh copy, however the code in Pharo is _not_ reloaded.
Is this a bug? Or do I need to do yet something more to reload that too?

Peter