Org + git branches for derived files

[Ken Mankoff]

Hello,

I think this might be more of a git question than an Org question, but I 
imagine I might find the answer here and that it might be useful to others, so 
I ask here.

I'd like to keep derivative products (the LaTeX output, the final PDF, etc.) 
available in Git, but not commit those changes each time I change the Org file. 
Perhaps git-annex as appropriate for this, but seems over-kill.

Is there some way to mostly-seamlessly commit the LaTeX and/or PDF and/or other 
files to their own git branches but in a way that overwrites the history of 
that branch, so that a small Org file that generates a big binary PDF does not 
pollute the git tree?

Thanks,

  -k.