Code review comment for lp://staging/~a1s/loggerhead/non-branch-directories

Thanks for this!

I confess I didn't completely follow the bug report, though I think I see what you mean by looking at the template. Do you have an example of a page that crashes at the moment, or some other way to reproduce the crash? (This would be helpful because we could use it to QA your fix.)

This needs a small fix, but otherwise looks good to me.