Reset related_name (was set to prevent duplicate)

src/paperless_mail/migrations/0012_alter_mailrule_assign_tags.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.12 on 2022-03-11 16:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("paperless_mail", "0011_remove_mailrule_assign_tag"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="mailrule",
+            name="assign_tags",
+            field=models.ManyToManyField(
+                blank=True, to="documents.Tag", verbose_name="assign this tag"
+            ),
+        ),
+    ]

src/paperless_mail/models.py

@@ -172,7 +172,6 @@ class MailRule(models.Model):
     assign_tags = models.ManyToManyField(
         document_models.Tag,
         blank=True,
-        related_name="mail_rules_multi",
         verbose_name=_("assign this tag"),
     )