Comment 3 for bug 666848

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Andrew Bennetts (spiv) wrote :

I think I see the bug. I think this check in bzrlib/'s needs to guard against paths[1] being None before calling is_inside_any:

        if self.view_files and not osutils.is_inside_any(self.view_files,

So looking at that code you're right that views are part of the trigger for this bug.