#eecms API privelages

gistfile1.php

// this used to work:

function login_temporary_user()
{
	if( $this->EE->session->userdata['member_id'] == 0) 
	{
		$this->EE->session->create_new_session(1, TRUE);
		$this->EE->session->userdata['group_id']  = 1;
	}
}

// now you need this

function login_temporary_user()
{
	if( $this->EE->session->userdata['member_id'] == 0) 
	{
		$this->EE->session->create_new_session(1, TRUE);
		$this->EE->session->userdata['group_id']  = 1;
		$this->EE->session->userdata['can_edit_other_entries'] = 'y';
		$this->EE->session->userdata['can_assign_post_authors'] = 'y';
	}
}

Thanks for the heads up, Iain! :-)