Fix change detection in automatic plan

aleksis/apps/chronos/models.py

@@ -110,7 +110,7 @@ class AutomaticPlan(LiveDocument):
 
                 # Check if the changed object is relevant for the time period of the PDF file
                 if not version.object.amends:
-                    return
+                    continue
 
                 if version.object.datetime_start:
                     date_start = version.object.datetime_start.date()