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@@ -130,7 +130,8 @@ class CustomCollector(Collector):
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# Clear any cached references to the objects being deleted first, so that each clear is
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# recorded and precedes the DELETE. Django nulls a SET_NULL column with a bulk UPDATE,
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# which emits no post_save and so is never change-logged. Models opt in by defining
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- # clear_cached_references(); cascaded objects reach this the same as explicit deletions.
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+ # clear_cached_references(); it covers cascaded objects as well as directly deleted ones,
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+ # but only on this collector -- a queryset delete uses Django's and bypasses it.
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with transaction.atomic(using=self.using, savepoint=False):
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for model, instances in self.data.items():
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if clear_references := getattr(model, 'clear_cached_references', None):
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Arthur