We have created two separate branches in https://github.com/SUNET/puppet-sunet:
Reference case: https://jira.sunet.se/browse/SA-72
Reference case: https://jira.sunet.se/browse/SA-72 (when we did for the first time)
git remote add multiverse git@github.com:SUNET/multiverse.git (If you don't already have it in your .git/config)
git fetch --all
git checkout multiverse (we already have a multiverse branch in remote)
git merge multiverse/main (meged the local multiverse branch with upstream multivers's main branch)
git push
Now we can check the diffs here https://github.com/TheIdentitySelector/thiss-ops/compare/master...multiverse
If satisified, create a Pull Request and confirm the merge.
Once every six months