# django__django-11910
# Loki Mode Multi-Agent Patch
# Attempts: 1

Based on the issue description and the architect's analysis, I need to generate a patch for the Django migration autodetector. The bug is that when renaming a PrimaryKey field, the autodetector generates an unnecessary `AlterField` operation for ForeignKey fields that reference the old field name in `to_field`.

Here's the patch:

```
--- a/django/db/migrations/autodetector.py
+++ b/django/db/migrations/autodetector.py
@@ -1003,6 +1003,21 @@ class MigrationAutodetector:
                     )
                 )
 
+    def _get_altered_pk_to_field_name(self, app_label, model_name, old_field_name):
+        """
+        Return the new field name if the field was renamed, None otherwise.
+        """
+        for rename_app, rename_model, old_name, new_name in self.renamed_fields:
+            if (rename_app, rename_model, old_name) == (app_label, model_name, old_field_name):
+                return new_name
+        return None
+
+    def _field_was_renamed(self, app_label, model_name, old_name):
+        """Check if a field was renamed."""
+        for rename_app, rename_model, rename_old, rename_new in self.renamed_fields:
+            if (rename_app, rename_model, rename_old) == (app_label, model_name, old_name):
+                return True
+        return False
+
     def generate_altered_fields(self):
         """
         Make AlterField operations, or possibly RemovedField/AddField if alter
@@ -1028,6 +1043,26 @@ class MigrationAutodetector:
                     old_field_dec = self.deep_deconstruct(old_field)
                     new_field_dec = self.deep_deconstruct(new_field)
                     if old_field_dec != new_field_dec:
+                        # Check if this is a ForeignKey/OneToOneField where the only
+                        # difference is the to_field pointing to a renamed field
+                        if (
+                            hasattr(old_field, 'remote_field') and
+                            old_field.remote_field and
+                            hasattr(new_field, 'remote_field') and
+                            new_field.remote_field
+                        ):
+                            old_to_field = old_field_dec[2].get('to_field')
+                            new_to_field = new_field_dec[2].get('to_field')
+                            if old_to_field and new_to_field is None:
+                                # Check if the old to_field was renamed
+                                related_model = old_field.remote_field.model
+                                if hasattr(related_model, '_meta'):
+                                    related_app = related_model._meta.app_label
+                                    related_model_name = related_model._meta.model_name
+                                    if self._field_was_renamed(related_app, related_model_name, old_to_field):
+                                        # Skip this AlterField as the RenameField handles it
+                                        continue
+
                         both_m2m = old_field.many_to_many and new_field.many_to_many
                         neither_m2m = not old_field.many_to_many and not new_field.many_to_many
                         if both_m2m or neither_m2m:
```

Wait, let me reconsider the issue more carefully. The problem is that after renaming a PrimaryKey field, the migration autodetector generates an `AlterField` for ForeignKey fields with the old `to_field` value. The real fix should be in how the autodetector compares the old and new field definitions when a referenced field has been renamed.

Let me provide a corrected patch:

--- a/django/db/migrations/autodetector.py
+++ b/django/db/migrations/autodetector.py
@@ -1028,6 +1028,30 @@ class MigrationAutodetector:
                     old_field_dec = self.deep_deconstruct(old_field)
                     new_field_dec = self.deep_deconstruct(new_field)
                     if old_field_dec != new_field_dec:
+                        # Check if this is a ForeignKey/OneToOneField where the only
+                        # difference is the to_field pointing to a field that was renamed.
+                        # In such cases, RenameField already handles the database changes.
+                        if (
+                            hasattr(old_field, 'remote_field') and
+                            old_field.remote_field and
+                            hasattr(new_field, 'remote_field') and
+                            new_field.remote_field
+                        ):
+                            old_to_field = old_field_dec[2].get('to_field')
+                            new_to_field = new_field_dec[2].get('to_field')
+                            if old_to_field and old_to_field != new_to_field:
+                                # Check if the old to_field was renamed to the new to_field
+                                remote_model_name = old_field.remote_field.model._meta.model_name
+                                remote_app_label = old_field.remote_field.model._meta.app_label
+                                for renamed_app, renamed_model, old_name, new_name in self.renamed_fields:
+                                    if (
+                                        renamed_app == remote_app_label and
+                                        renamed_model == remote_model_name and
+                                        old_name == old_to_field and
+                                        (new_name == new_to_field or new_to_field is None)
+                                    ):
+                                        continue
+
                         both_m2m = old_field.many_to_many and new_field.many_to_many
                         neither_m2m = not old_field.many_to_many and not new_field.many_to_many
                         if both_m2m or neither_m2m: