Fix the commit_id bug

app.py

@@ -192,12 +192,6 @@ with tab2:
         inference_functions_names,
     )
 
-    if model_name and model_revision:
-        # Get the model's commit id
-        commit_id = api.list_repo_commits(model_name, revision=model_revision)[
-            0
-        ].commit_id
-
     # Show the docstring of the inference functions
     inference_functions_docstring = [
         getattr(eval_utils, func).__doc__ for func in inference_functions_names
@@ -216,7 +210,12 @@ with tab2:
             "Note: We are happy to discuss adding new custom inference methods for your models."
         )
 
-    if model_name and model_name and inference_function:
+    if model_name and model_revision and inference_function:
+        # Get the model's commit id
+        commit_id = api.list_repo_commits(model_name, revision=model_revision)[
+            0
+        ].commit_id
+
         # Add the model to the evaluation queue
         utils.update_model_queue(
             repo_id=os.environ["PREDICTIONS_DATASET_NAME"],