git clone/fetch/push don't work

I suddenly can't clone/fetch/push to one of my git repositories. This looks similar to bug BCLOUD-9408.

Here is what I get:

#!bash
dmancusi@phnpcd76:test$ git clone git@bitbucket.org:arekfu/incl.git .
Cloning into '.'...
conq: repository does not exist.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights and the repository exists.

Fetching from/pushing to this repository won't work, either. Other repositories on my account work fine, so it's not an authentication problem (indeed, ssh -Tv git@bitbucket.org succeeds). Perhaps there is a problem on the server side?