Resolve "Use correct Room model"

Closes #12 (closed)

aleksis/apps/stoelindeling/migrations/0001_initial.py

@@ -10,6 +10,7 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
+        ('core', '0035_preference_model_unique'),
         ('sites', '0002_alter_domain_unique'),
         ('chronos', '0010_remove_subject_unique_name_per_site'),
     ]