Impacted versions:
9.0 Community & 9.0 Enterprise

Steps to reproduce:
- Open up a V9 Enteprise Runbot
- Go to projects and open up the issues for the project 'Data Import/Export Plugin'
- Click on 'Create' to create a new issue. You will see the following form:
  ![image](https://cloud.githubusercontent.com/assets/6352350/13873556/8f826fbc-ecf2-11e5-95aa-e5cd7965b976.png)
  Notice how the Contact is filled in with the name 'Delta PC' and that no e-mail is filled in. When you open up this contact its form you will see he has an e-mail filled in:
  ![image](https://cloud.githubusercontent.com/assets/6352350/13873580/afd81f0a-ecf2-11e5-960f-91e14a999578.png)
- Remove the contact on the issue, click somewhere else and now fill in the contact again. The moment you add the contact again the onchange function goes off and the e-mail is filled in automatically:
  ![image](https://cloud.githubusercontent.com/assets/6352350/13873605/d0884068-ecf2-11e5-8892-5fcd0fc692b2.png)

Current behavior:
When clicking on 'Create' for creating a new issue on a project the customer its e-mail is not automatically filled in because the onchange does not seem to have an effect on the record.

Expected behavior:
When click on 'Create' for creating a new issue on a project the customer his e-mail is filled in automatically (provided there is one).

for issue in self.browse(cr, uid, ids, context=context):
            data = {}
            esc_proj = issue.project_id.project_escalation_id
            if not esc_proj:
                raise osv.except_osv(_('Warning!'), _('You cannot escalate this issue.\nThe relevant Project has not configured the Escalation Project!'))
            data['project_id'] = esc_proj.id
            if esc_proj.user_id:
                data['user_id'] = esc_proj.user_id.id
            issue.write(data)
            if issue.task_id:
                issue.task_id.write({'project_id': esc_proj.id, 'user_id': False})
        return True
    # --
    # Ma
    # --
    def message_get_reply_to(self, cr, uid, ids, context=None):