By picking a branch in tog ref, and then opening a log view, you
can view the commits on that branch.  But if you open a diff view
from there, '<' and '>' for moving to a younger/older commit will
not stay on the branch.  That seems wrong.  The idea of previous/
next commit should be consistent with the log view.

E.g., say you have a branch "wip".

* start tog ref
* pick wip, hit enter for the log view
* pick one of the commits near the tip of the branch, hit enter for
  the diff view
* move to younger/older commits with < and >
* you'll be shown commits with a different idea of previous/next

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de