handle image attachments recursively

bookwyrm/migrations/0015_auto_20201128_0349.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.7 on 2020-11-28 03:49
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('bookwyrm', '0014_auto_20201128_0118'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='image',
+            name='status',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='attachments', to='bookwyrm.Status'),
+        ),
+    ]