Re: Output from "git blame A..B -- path" for the bottom commit is misleading

In short:

 - I am not considering nor proposing to change the default at all.

 - I have two choices, either change the behaviour of "-b", or
   introducing a new option (the latter includes "-b -b"); I am
   slightly in favor of the latter, but not by a large margin.

 - I have two choices, regardless of how the new mode is triggered,
   for outputs.  Either fill it with "Unknown" name and leave
   everything else as is, or blank all information from the boundary
   commit out.  I am moderately in favor of the latter.

Hope that clarifies.