don't query for rendered release_descriptions in JSON api (pypi#16273)

JSON api only sends raw and content_type... so lets not query for rendered

Co-authored-by: Dustin Ingram <di@users.noreply.github.com>

warehouse/legacy/api/json.py

@@ -18,7 +18,7 @@
 
 from warehouse.cache.http import cache_control
 from warehouse.cache.origin import origin_cache
-from warehouse.packaging.models import File, Project, Release, ReleaseURL
+from warehouse.packaging.models import Description, File, Project, Release, ReleaseURL
 from warehouse.utils.cors import _CORS_HEADERS
 
 _RELEASE_CACHE_DECORATOR = [
@@ -63,6 +63,14 @@ def _json_data(request, project, release, *, all_releases):
     if not all_releases:
         release_files = release_files.filter(Release.id == release.id)
 
+    # Get the raw description and description content type for this release
+    release_description = (
+        request.db.query(Description)
+        .options(Load(Description).load_only(Description.content_type, Description.raw))
+        .filter(Description.release == release)
+        .one()
+    )
+
     # Finally set an ordering, and execute the query.
     release_files = release_files.order_by(
         Release._pypi_ordering.desc(), File.filename
@@ -134,8 +142,8 @@ def _json_data(request, project, release, *, all_releases):
             "name": project.name,
             "version": release.version,
             "summary": release.summary,
-            "description_content_type": release.description.content_type,
-            "description": release.description.raw,
+            "description_content_type": release_description.content_type,
+            "description": release_description.raw,
             "keywords": release.keywords,
             "license": release.license,
             "classifiers": list(release.classifiers),