[3.2.x] Fixed #32947 -- Fixed hash() crash on reverse M2M relation when through_fields is a list.

Regression in c32d8f33d8e988a376e44997b8f3606d821f305e.

Backport of 20226fcd461670334646f78a0c4d133e439b12b2 from main

1 files changed, 27 insertions, 0 deletions

diff --git a/tests/invalid_models_tests/test_models.py b/tests/invalid_models_tests/test_models.py
index ab9daad13a..b4c7938687 100644
--- a/tests/invalid_models_tests/test_models.py
+++ b/tests/invalid_models_tests/test_models.py
@@ -821,6 +821,33 @@ class ShadowingFieldsTests(SimpleTestCase):
             )
         ])
 
+    def test_field_name_clash_with_m2m_through(self):
+        class Parent(models.Model):
+            clash_id = models.IntegerField()
+
+        class Child(Parent):
+            clash = models.ForeignKey('Child', models.CASCADE)
+
+        class Model(models.Model):
+            parents = models.ManyToManyField(
+                to=Parent,
+                through='Through',
+                through_fields=['parent', 'model'],
+            )
+
+        class Through(models.Model):
+            parent = models.ForeignKey(Parent, models.CASCADE)
+            model = models.ForeignKey(Model, models.CASCADE)
+
+        self.assertEqual(Child.check(), [
+            Error(
+                "The field 'clash' clashes with the field 'clash_id' from "
+                "model 'invalid_models_tests.parent'.",
+                obj=Child._meta.get_field('clash'),
+                id='models.E006',
+            )
+        ])
+
     def test_multiinheritance_clash(self):
         class Mother(models.Model):
             clash = models.IntegerField()