Fix session state assignment in Manage Portfolio tab to correctly reference base_frame_names for working_frame and new_base_name.

app.py

@@ -1750,7 +1750,7 @@ if selected_tab == 'Manage Portfolio':
                 with st.popover("Reset Portfolio"):
                     st.markdown("choose a base to reset to:")
                     base_choice = st.selectbox("Base Choice", options=st.session_state['base_frame_names'], index=0)
-                    st.session_state['working_frame'] = st.session_state[f'{base_choice}']
+                    st.session_state['working_frame'] = st.session_state['base_frame_names'][base_choice]
             with recalc_div_col:
                 if st.button("Recalculate Diversity"):
                         st.session_state['display_frame']['Diversity'] = recalc_diversity(st.session_state['display_frame'], st.session_state['player_columns'])
@@ -1761,7 +1761,7 @@ if selected_tab == 'Manage Portfolio':
                     if f'{new_base_name}' not in st.session_state['base_frame_names']:
                         st.session_state['base_frame_names'].append(f'{new_base_name}')
                         st.session_state['base_frame_names'] = sorted(st.session_state['base_frame_names'])
-                        st.session_state[f'{new_base_name}'] = st.session_state['working_frame']
+                        st.session_state['base_frame_names'][new_base_name] = st.session_state['working_frame']
                     else:
                         st.error("Base name already exists")