I have implemented an entity presave hook to process a file field attached to a node. However, I don't want to do this processing when a node is cloned. I can subscribe to the presave clone event, but I don't see how I can use that with the entity presave hook.
I've looked to see if there's a property on the entity that indicates it's a clone, but I don't such a thing. Any ideas how I might do this?
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
At present there doesn't seem to be a built-in way to track this.
I've solved this in my project by adding an entity reference field named "field_source_entity".
That field that stays empty on entities that get cloned, and automatically gets populated on cloned entities through a custom EventSubscriber that listens to the 'entity_clone.post_clone' event and sets $clone->field_source_entity to $original->id().