allow to save an empty poll

openslides/poll/forms.py

@@ -32,4 +32,5 @@ class OptionForm(forms.Form, CssClassMixin):
                 label=value,
                 initial=weight,
                 min_value=-2,
+                required=False,
             )

openslides/poll/models.py

@@ -33,7 +33,7 @@ class TextOption(BaseOption):
 class Vote(models.Model):
     option = models.ForeignKey(BaseOption)
     #profile = models.ForeignKey(Profile) # TODO: we need a person+ here
-    weight = models.IntegerField(default=1)
+    weight = models.IntegerField(default=1, null=True)
     value = models.CharField(max_length=255, null=True)
 
     def get_weight(self, raw=False):