make ens/sing. model selection deterministic

src/pages/1_Individual_Predictions.py

@@ -187,7 +187,7 @@ if submitted:
     if st.session_state.SELF:
         pred = 0.0
     else:
-        if "ensemble" in st.session_state.selected_model:
+        if st.session_state.selected_model.endswith("ensemble"):
             # ensemble prediction
             models = load_model_ensemble(st.session_state.selected_model)
             target_col = models.get("target_col", "UNKNOWN")

src/pages/2_Bulk_Predictions.py

@@ -10,7 +10,7 @@ from sidebar import sidebar
 sidebar()
 
 if "selected_model" in st.session_state:
-    if "ensemble" in st.session_state.selected_model:
+    if st.session_state.selected_model.endswith("ensemble"):
         # ensemble model
         ensemble = True
         try: