git-svn - #object# doesn't exist in the repository at /opt/local/libexec/git-core/git-svn line 4706

on

git svn dcommit

it starts commiting and then I get this

A   spec/controllers/authenticated_system_spec.rb
A   spec/controllers/sessions_controller_spec.rb
A   spec/controllers/users_controller_spec.rb
A   spec/fixtures/users.yml
A   spec/helpers/users_helper_spec.rb
A   spec/models/user_spec.rb
A   vendor/plugins/haml/init.rb
A   vendor/plugins/restful_authentication
7235d9150e8beb80a819923a4c871ef4069c6759 doesn't exist in the repository at /opt/local/libexec/git-core/git-svn line 4706
Failed to read object 7235d9150e8beb80a819923a4c871ef4069c6759 at /opt/local/libexec/git-core/git-svn line 570

any ideas how one goes about fixing this one?

tried inspecting with git fsck --full but git repo and all git commands seem to work fine just can't dcommit.