test(watson): supply Product.description in flush hook fixtures

CI runs the V3_FEATURE_LOCATIONS=True matrix where BaseModel.save calls
full_clean — Product.description is blank=False, so the bare fixture
ValidationErrors out. Local default (V3 off) skips validation, masking
this in the prior run.

Author: valentijnscholten

unittests/test_watson_intermediate_flush.py

@@ -35,7 +35,11 @@ def setUp(self):
         self.prod_type = Product_Type.objects.create(name="Intermediate Flush PT")
         # Pre-create some products to add to the watson context manually.
         self.products = [
-            Product.objects.create(name=f"intermediate-flush-prod-{i}", prod_type=self.prod_type)
+            Product.objects.create(
+                name=f"intermediate-flush-prod-{i}",
+                description="intermediate flush fixture",
+                prod_type=self.prod_type,
+            )
             for i in range(5)
         ]