Would like to clone over SSH anonymously for public repos (BB-6718)

It would be great if I could anonymously (that is without having my public key on current machine) pull public repositories via SSH.

Problem is as follows:

1. I have a private repo that uses git submodules to pull bunch of my repositories (that are mostly public).
2. Since I use git submodules I need to have the same ssh urls both on my developement machine and my deployment machnie. Example of such url is: git@bitbucket.org:jbzdak/django-mailhide.git
3. For my non-public repositories I use deployment keys and everything works OK.
4. But since I have a lot of sub repositories it would be nice if my public repositores would work without the need uploading deployment keys to them.
5. Since my repository paths are fixed I can't switch to HTTPS, it would really be nice if cloning remote repostiories via ssh would work.