no need to fetch all branches from odoo/technical-training-sandbox
Also, ``git push`` without upstream may not work depending on git
version/configuration:
```
$ git push -u master-my_first_branch-IEL
fatal: The current branch master-my_first_branch-IEL has no upstream branch.
To push the current branch and set the remote as upstream, use
git push --set-upstream master-my_first_branch-IEL master-my_first_branch-IEL
```
86cefde583