[7.0][email_template] Rendering of pdfs not readable when using Send Mail actions on SO or Invoice

Used SaaS database for testing environnement on Monday 11/02/2013 16.30 GMT+1 (for you to know addons revisions)

1. Need to install email_template, sales, account_accountant
2. Need to head to Settings > Technical > Email > Templates
3. Open both following forms:
- Sales Order - Send by Email
- Invoice - Send by Email
and press the 'Add context action' button on top right of form view
4. Head out to SO or Invoice and in the read-only form view select More > Send Email (Sales Order or Invoice)

Be sure that you can access the email test you have sent.

Try to open the email's pdf attachement and you will receive a message saying it is corrupted. I did not expect this error and wanted to read my pdf Sale order or Invoice.

Also another related issue is that I did the Step 3 (pressing adding contect action button) with user preferences in French and then when switching to English the More action button on Sales Order or Invoice remaining in French (was not translated into English). Thought about eventually reporting this as another issue. Should I?