Comment 5 for bug 724174

To elaborate further on Naresh's comment, the behavior described in this bug report does not strike me as inconsistent.
Albert, please correct us if we are missing something in your original bug description.

Here is the rationale:
OpenERP by default allows sharing partners with ancestor and child companies, because for most small companies this is a sensible default, which avoids a lot of Partner duplication.
Because OpenERP allows to share them, it means that you can of course use them in company-specific documents, such as invoices. There would be no sense in allowing to share them if you couldn't do that.
If this behavior is not desired, the default record rule (ir.rule) for Partners should be changed to only allow seeing company-local Partners, for example (as part of the recommended assessment of record rules when integrating a multi-company OpenERP system).

If you agree, please close the bug as Invalid, otherwise do not hesitate to make it New again and provide additional details.

Thanks!