Do not fail on delete() when blinker is not available
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@ -366,7 +366,7 @@ class QuerySet(object):
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queryset = self.clone()
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queryset = self.clone()
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doc = queryset._document
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doc = queryset._document
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has_delete_signal = (
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has_delete_signal = signals.signals_available and (
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signals.pre_delete.has_receivers_for(self._document) or
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signals.pre_delete.has_receivers_for(self._document) or
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signals.post_delete.has_receivers_for(self._document))
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signals.post_delete.has_receivers_for(self._document))
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