filter owner selection in AK submission by event

AKSubmission/forms.py

@@ -52,6 +52,7 @@ class AKForm(forms.ModelForm):
         self.fields['requirements'].queryset = AKRequirement.objects.filter(event=self.initial.get('event'))
         self.fields['prerequisites'].queryset = AK.objects.filter(event=self.initial.get('event'))
         self.fields['conflicts'].queryset = AK.objects.filter(event=self.initial.get('event'))
+        self.fields['owners'].queryset = AKOwner.objects.filter(event=self.initial.get('event'))
 
     @staticmethod
     def _clean_duration(duration):