Great question,
Hikalkan you don't answered about save a Complex Graph or Hierarquical Graph.
As i know the EfRepositoryBaseOfTEntityAndTPrimaryKey handle only with main Entity.
If i want update association entites( complex Graph), how can i do?
If i have a disconnected object the only way your offer is comparing Id.
What if EfRepositoryBaseOfTEntityAndTPrimaryKey could handle with complex Graph using ObjectState, what your opinion about this?
The best way to find which name of your service is access url /api/AbpServiceProxies/GetAll?type=angular you will find all services.