Refs #36580 -- Added coverage for excluding ForeignObject from constraint validation.

tests/foreign_object/models/customers.py

@@ -39,3 +39,22 @@ class Contact(models.Model):
         to_fields=["customer_id", "company"],
         from_fields=["customer_code", "company_code"],
     )
+
+
+class CustomerTab(models.Model):
+    customer_id = models.IntegerField()
+    customer = models.ForeignObject(
+        Customer,
+        from_fields=["customer_id"],
+        to_fields=["id"],
+        on_delete=models.CASCADE,
+    )
+
+    class Meta:
+        required_db_features = {"supports_table_check_constraints"}
+        constraints = [
+            models.CheckConstraint(
+                condition=models.Q(customer__lt=1000),
+                name="customer_id_limit",
+            ),
+        ]