Automatic filenaming on branched graphs.

[white-gecko]

1. Start quit on an new repo.

   content = "<http://ex.org/a> <http://ex.org/b> <http://ex.org/c> ."
   with TemporaryRepositoryFactory().withGraph("http://example.org/", content) as repo:
       args = quitApp.parseArgs(['-t', repo.workdir])
       objects = quitApp.initialize(args)
       config = objects['config']
       app = create_app(config).test_client()
   

2. Create two branches from the same original branch

       app.post("/branch", data={"oldbranch": "master", "newbranch": "develop"})
       app.post("/branch", data={"oldbranch": "master", "newbranch": "target"})
   

3. Insert data into the same new graph on both branches.

       update = "INSERT DATA {graph <http://new.org/> {<http://ex.org/x> <http://ex.org/y> <http://ex.org/z> .}}"
       app.post('/sparql/target', data={"update": update})
   
       update = "INSERT DATA {graph <http://new.org/> {<http://ex.org/z> <http://ex.org/y> <http://ex.org/x> .}}"
       app.post('/sparql/develop', data={"update": update})
   

Problem: in one branch there will be new.nt and in the other one new_1.nt.
Further there is a problem merging the two graphs from different files.