Fix a bug related to consist

ram/consist/models.py

@@ -105,7 +105,8 @@ class ConsistItem(models.Model):
 # it is hosted here to avoid circular imports
 @receiver(models.signals.post_save, sender=RollingStock)
 def post_save_unpublish_consist(sender, instance, *args, **kwargs):
-    consists = Consist.objects.filter(consist_item__rolling_stock=instance)
-    for consist in consists:
-        consist.published = False
-        consist.save()
+    if not instance.published:
+        consists = Consist.objects.filter(consist_item__rolling_stock=instance)
+        for consist in consists:
+            consist.published = False
+            consist.save()

ram/ram/__init__.py

@@ -1,4 +1,4 @@
 from ram.utils import git_suffix
 
-__version__ = "0.16.5"
+__version__ = "0.16.6"
 __version__ += git_suffix(__file__)