def save(self, no_signals=False, *args, **kwargs):
        if not self.depth:
            if self.parent_id or self.parent:
                self.parent.add_child(instance=self)
            else:
                if not self.position and not self.position != 0:
                    self.position = CMSPlugin.objects.filter(parent__isnull=True,
                                                             language=self.language,
                                                             placeholder_id=self.placeholder_id).count()
                self.add_root(instance=self)
            return
        super(CMSPlugin, self).save(*args, **kwargs)
dataset/ETHPy150Open divio/django-cms/cms/models/pluginmodel.py/CMSPlugin.save/operator `==` -> `!=`