Select only blob_md5 when checking existing parameters file

src/fmu/sumo/uploader/_upload_files.py

@@ -140,7 +140,9 @@ def _upload_files(
             paramfile = get_parameter_file(parameters_path, config_path)
             # Check if the parameters file does not exist or if it has changed
             query = f"fmu.case.uuid:{sumo_parent_id} AND fmu.realization.uuid:{realization_id} AND data.content:parameters"
-            search_res = sumoclient.get("/search", {"$query": query}).json()
+            search_res = sumoclient.get(
+                "/search", {"$query": query, "$select": "_sumo.blob_md5"}
+            ).json()
             if (
                 search_res["hits"]["total"]["value"] == 0
                 or search_res["hits"]["hits"][0]["_source"]["_sumo"][