fix: Make sure BlogPageAuthor.author is not null

ietf/blog/migrations/0008_alter_blogpageauthor_author.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.20 on 2023-11-24 13:34
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('snippets', '0002_auto_20200414_2027'),
+        ('blog', '0007_alter_blogpage_body'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='blogpageauthor',
+            name='author',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='+', to='snippets.person'),
+        ),
+    ]

ietf/blog/models.py

@@ -104,8 +104,6 @@ class BlogPageAuthor(models.Model):
         "snippets.Person",
         on_delete=models.CASCADE,
         related_name="+",
-        null=True,
-        blank=True,
     )
     role = models.ForeignKey(
         "snippets.Role",