serializers: Optimize query performance on PatchDetailSerializer for 'patchinterest'

Signed-off-by: andrepapoti <[email protected]>

Author: andrepapoti

Diff for: patchwork/api/patch.py

@@ -410,6 +410,7 @@ def get_queryset(self):
                 'project',
                 'series__project',
                 'related__patches__project',
+                'patchreviewintention_set__user',
             )
             .select_related('state', 'submitter', 'series')
             .defer('content', 'diff', 'headers')

Diff for: patchwork/tests/api/test_patch.py

@@ -239,7 +239,7 @@ def test_list_bug_335(self):
         series = create_series()
         create_patches(5, series=series)
 
-        with self.assertNumQueries(5):
+        with self.assertNumQueries(6):
             self.client.get(self.api_url())
 
     @utils.store_samples('patch-detail')