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As with other Behaviors, the appropriate Model should define $actsAs = ("Changelog" => array('priority' => 5)) or similar.
ChangelogBehavior must execute before ContainableBehavior in order to properly filter results from contain'd finds. The default priority for behaviors is 10, so setting the priority to 5 will cause the ChangelogBehavior to execute first.
In order to support Changelogs, a Changelog-enabled Model must define several fields. As described below, these fields are used to track changed records:
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