checkout to a reflog entry

[bill lam <cbill.lam@gmail.com>]

Sometimes when git reflog and try to checkout to a previous commit, 

project((6a33dbc...))$ git reflog show master
77aa688 master@{0}: rebase -i (finish): refs/heads/master onto fc3eaa4
6a33dbc master@{1}: commit: wip
.....


project(master)$ git checkout master@{1}
Note: moving to 'master@{1}' which isn't a local branch
If you want to create a new branch from this checkout, you may do so
(now or later) by using -b with the checkout command again. Example:
  git checkout -b <new_branch_name>
HEAD is now at 6a33dbc... wip
project((6a33dbc...))$ 

project((6a33dbc...))$ git branch
* (no branch)
  master

It becomes (no branch) although the SHA1 is correct. If I then checkout master,
then it revert and jump back up the previous master HEAD.  I tried HEAD@{xx}
also failed.  What is the correct way of to checkout that master@{..} and stay
in that master branch?  (Sometimes it worked I forgot how and why)

-- 
regards,
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