Document a catch with implicit approvals
Document a catch with implicit approvals

In a follow-up change we may implement a config option to turn off
implicit approvals so that such issues can be prevented.

Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>
Change-Id: I07a9a9c2178ddb381a8ffb6c6338430943c37e7c

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