merging branch

Hi,

  I have the following branches:

$ git branch
* master
  release

  I have messed up my 'release' branch by manually importing file one
by one using: git checkout release && git checkout master my_file.cxx

  So now I'd like to merge back release to master. I tried:

$ git checkout master && git merge -s ours release
$ git status
# On branch master
# Your branch is ahead of 'origin/master' by 27 commits.
#
nothing to commit (working directory clean)
$ git diff origin/master..master
-> return nothing

Since most of those commits will be redundant, I need to 'git pull
--rebase', right ? However I did not understand how to pass the
--interactive option to git pull --rebase to split this set of 27
commits (I'd like to discard at least one large one)

Thanks !
-- 
Mathieu