gitk: Removing Stacked Git branches from the --all view

  I often run 'gitk --all'.  It works great until I introduce Stacked 
Git into the equation.  StGit uses branches called branchname.stgit for 
various metadata.  The metadata turns into an ugly mess with gitk --all.

I've been playing around with various 'git log' options, but I'm not finding one that gives me the gitk --all view as if StGit were never attached to the repository. (Speaking of StGit and apps that store metadata in branches... it would be awesome to have a filter that knocks those branches out of ALL views of the data.)

Would someone mind helping me out?

Thanks.

Josh