I’ve found this one:
git push rorg 'refs/remotes/korg/*:refs/heads/*'
And it pushed all my remote branches from korg to rorg (even without local copies of the branches). See the output below:
Counting objects: 293, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (67/67), done.
Writing objects: 100% (176/176), 48.32 KiB, done.
Total 176 (delta 105), reused 168 (delta 97)
remote: Resolving deltas: 11% (12/105)
To <<MY_REPOSITORY_URL>>
* [new branch] korg/gingerbread-> gingerbread
* [new branch] korg/gingerbread-release -> gingerbread-release
* [new branch] korg/honeycomb-> honeycomb
* [new branch] korg/HEAD -> HEAD
* [new branch] korg/honeycomb-mr1-release-> honeycomb-mr1-release
* [new branch] korg/master -> master
And then you can make the same push for tags refs:
git push rorg 'refs/tags/*:refs/tags/*'