Merge branch...

Merge branch '125-alsijil-personalnote-extra_marks-fields-w340-null-has-no-effect-on-manytomanyfield' into 'master'

Resolve "alsijil.PersonalNote.extra_marks: (fields.W340) null has no effect on ManyToManyField"

Closes #125

See merge request !123

aleksis/apps/alsijil/migrations/0003_extra_mark.py

@@ -64,7 +64,6 @@ class Migration(migrations.Migration):
             name="extra_marks",
             field=models.ManyToManyField(
                 blank=True,
-                null=True,
                 to="alsijil.ExtraMark",
                 verbose_name="Extra marks",
             ),

aleksis/apps/alsijil/models.py

@@ -81,9 +81,7 @@ class PersonalNote(ExtensibleModel, WeekRelatedMixin):
 
     remarks = models.CharField(max_length=200, blank=True)
 
-    extra_marks = models.ManyToManyField(
-        "ExtraMark", null=True, blank=True, verbose_name=_("Extra marks")
-    )
+    extra_marks = models.ManyToManyField("ExtraMark", blank=True, verbose_name=_("Extra marks"))
 
     def save(self, *args, **kwargs):
         if self.excuse_type: