alex@alex-laptop:~/Development/Wikimedia$ git clone ssh://gerrit/operations/puppet Operations-Puppet
Cloning into 'Operations-Puppet'...
remote: Counting objects: 13480, done
remote: Finding sources: 100% (3698/3698)
remote: Getting sizes: 100% (2075/2075)
remote: Compressing objects: 100% (2878754/2878754)
remote: Total 428131 (delta 1597), reused 427021 (delta 1223)
Receiving objects: 100% (428131/428131), 113.53 MiB | 3.33 MiB/s, done.
Resolving deltas: 100% (331163/331163), done.
alex@alex-laptop:~/Development/Wikimedia$ cd Operations-Puppet
alex@alex-laptop:~/Development/Wikimedia/Operations-Puppet (production)$ git fetch https://gerrit.wikimedia.org/r/operations/puppet refs/changes/61/501461/1 && git checkout FETCH_HEAD
remote: Counting objects: 13489, done
remote: Finding sources: 100% (9/9)
remote: Getting sizes: 100% (1/1)
remote: Total 9 (delta 6), reused 9 (delta 6)
Unpacking objects: 100% (9/9), done.
From https://gerrit.wikimedia.org/r/operations/puppet
 * branch                  refs/changes/61/501461/1 -> FETCH_HEAD
Note: checking out 'FETCH_HEAD'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, 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 f94d2f8c09 wikiba.se TLS: Make support for different certificate sources clearer
alex@alex-laptop:~/Development/Wikimedia/Operations-Puppet ((f94d2f8c09...))$ git pull --rebase origin production
From ssh://gerrit/operations/puppet
 * branch                  production -> FETCH_HEAD
fatal: bad object 0000000000000000000000000000000000000000