Update src/sidebar.py

src/sidebar.py

@@ -13,7 +13,7 @@ SAVED_MODELS_DIR = Path("src/saved_models")
 
 def _init_session_defaults():
     # defaults used by all pages
-    st.session_state.setdefault("selected_model", DEFAULT_MODEL)
+    st.session_state.setdefault("selected_model", None)
     st.session_state.setdefault("target_choice", DEFAULT_TARGET)   # bulk page uses this
     st.session_state.setdefault("target_col", DEFAULT_TARGET)      # individual/training set this too
     st.session_state.setdefault("threshold", DEFAULT_THRESHOLD)