Description of problem:
Created a git repo on github containing a single README.md file and cloned it in BPMS 6.1 I then attempted to create a new project within this cloned repo from business central. The "Create new Project" dialog remains on the screen after I click the Ok button and nothing else happens. In the javascript console I see:

"receiver 'org.guvnor.asset.management.service.RepositoryStructureService:RPC.load:org.guvnor.structure.repositories.Repository::26:RespondTo:RPC' threw an exception"

Version-Release number of selected component (if applicable):
Tried in BRMS 6.1.0 and also with the latest patch (6.1.2)

How reproducible:
Always

Steps to Reproduce:
1. Create a repository on GitHub (GitLab had the same behavior)
2. Create a README.md file in the repository
3. Log in to BRMS, select Authoring->Administration->Repositories->Clone Repository
4. Fill in a name, org unit, github url, github username/password, select Clone
5. Acknowledge the confirmation dialog
6. Authoring -> Project Authoring, select the organization and repo name used above
7. Select New Item -> Project, enter a project name and select Ok

Actual results:
The dialog remains on the screen, the following is logged in the javascript console:

"receiver 'org.guvnor.asset.management.service.RepositoryStructureService:RPC.load:org.guvnor.structure.repositories.Repository::26:RespondTo:RPC' threw an exception"

Expected results:
A new project is created within the cloned repository

Additional info: