ensure correct authentication is used for different repositories hosted on the same svn server

As reported on FE-3577, there might be authentication issues when you have 2 users accessing the same SVN server containing 2 different repositories each with different authentication details, where the user for 1 cannot access the path of the other and vice-versa.

On the same issue there is documented confirmed workaround, to specify the username as part of the URL when defining your repository location.

FishEye could perhaps append username automatically to the URL to avoid this problem.

There is also a chance the issue has been improved in the newer versions of svnkit, let's try to replicate again and see if it requires any more action.