circular import issues and added_by migration

bookwyrm/migrations/0043_auto_20210204_2223.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.0.7 on 2021-02-04 22:23
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('bookwyrm', '0042_auto_20210201_2108'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='listitem',
+            old_name='added_by',
+            new_name='user',
+        ),
+        migrations.RenameField(
+            model_name='shelfbook',
+            old_name='added_by',
+            new_name='user',
+        ),
+    ]