GIT_EBUFS error being thrown on successful push the AWS CodeCommit repository.

After pushing to changes to a git repository on AWS CodeCommit using SSH based credentials, an error is thrown, however the push to AWS is successful. The error message is

Error: Method push has thrown an error.

and the error number is {"errno":-6}, which I've tracked back to GIT_EBUFS found here https://github.com/nodegit/nodegit/blob/44779afd0d460011e13a5cba9a47a48119aa472e/vendor/libgit2/include/git2/errors.h#L28

I've got a reproduction case here : https://gist.github.com/Murcho/fcba744b2870fa38531f

Requirements for the case are:

• Set up an AWS CodeCommit account.
• Create an IAM user account.
• Follow this guide for setting up the AWS IAM account with your SSH keys http://docs.aws.amazon.com/codecommit/latest/userguide/setting-up-without-cli.html
• Add 2 permissions to the IAM user : AWSCodeCommitFullAccess and IAMUserSSHKeys.

Start by running the linked reproduction case against an AWS CodeCommit repository configured with the documented SSH and IAM setup. Inspect the GIT_EBUFS definition in vendor/libgit2/include/git2/errors.h and compare the push result with the reported error. Done means a successful CodeCommit push no longer reports Method push has thrown an error or errno -6.