Move prefetch_related() on the ProjectListView to also have impact when include_disabled and include_system are used

optimization.diff

diff --git a/pontoon/api/serializers.py b/pontoon/api/serializers.py
index ffd6f0b4a..1c8b41ce3 100644
--- a/pontoon/api/serializers.py
+++ b/pontoon/api/serializers.py
@@ -107,7 +107,7 @@ class NestedProjectSerializer(ProjectSerializer):
         fields = ProjectSerializer.Meta.fields + ["tags", "locales"]

     def get_locales(self, obj):
-        return list(obj.project_locale.values_list("locale__code", flat=True))
+        return [projectLocale.locale.code for projectLocale in obj.project_locale.all()]


 class NestedLocaleSerializer(LocaleSerializer):
@@ -117,7 +117,9 @@ class NestedLocaleSerializer(LocaleSerializer):
         fields = LocaleSerializer.Meta.fields + ["projects"]

     def get_projects(self, obj):
-        return [pl.project.slug for pl in obj.project_locale.all()]
+        return [
+            projectLocale.project.slug for projectLocale in obj.project_locale.all()
+        ]


 class NestedProjectLocaleSerializer(ProjectLocaleSerializer):
diff --git a/pontoon/api/views.py b/pontoon/api/views.py
index 80b72be4b..87da44ebf 100644
--- a/pontoon/api/views.py
+++ b/pontoon/api/views.py
@@ -141,7 +141,13 @@ class ProjectListView(generics.ListAPIView):
         include_disabled = query_params.get("include_disabled")
         include_system = query_params.get("include_system")

-        base_queryset = Project.objects.visible().visible_for(self.request.user)
+        base_queryset = (
+            Project.objects.visible()
+            .visible_for(self.request.user)
+            .prefetch_related("project_locale__locale", "tags")
+            .select_related("contact")
+        )
+
         filters = Q()
         if include_disabled is not None:
             filters |= Q(disabled=True)
@@ -155,8 +161,10 @@ class ProjectListView(generics.ListAPIView):


 class ProjectIndividualView(generics.RetrieveAPIView):
-    queryset = Project.objects.all().prefetch_related(
-        "project_locale__locale", "contact"
+    queryset = (
+        Project.objects.all()
+        .prefetch_related("project_locale__locale")
+        .select_related("contact")
     )
     serializer_class = NestedProjectSerializer
     lookup_field = "slug"