quick logging fix

Author: aseembits93

codeflash/optimization/function_optimizer.py

@@ -1124,7 +1124,7 @@ def find_and_process_best_optimization(
                     new_explanation_raw_str = self.aiservice_client.get_new_explanation(
                         source_code=code_context.read_writable_code,
                         dependency_code=code_context.read_only_context_code,
-                        trace_id=self.function_trace_id[:-4] + exp_type,
+                        trace_id=self.function_trace_id[:-4] + exp_type if self.experiment_id else self.function_trace_id,
                         optimized_code=best_optimization.candidate.source_code,
                         original_line_profiler_results=original_code_baseline.line_profile_results["str_out"],
                         optimized_line_profiler_results=best_optimization.line_profiler_test_results["str_out"],