Update app.py

app.py

@@ -269,6 +269,11 @@ def display_image(image_path):
         img = Image.open(f)
         st.image(img, caption='', use_column_width=True)
 
+def _ensure_key(key: str, default):
+    if key not in st.session_state:
+        st.session_state[key] = default
+    return st.session_state[key]
+    
 SPEAKER_RE = re.compile(r'^\s*\*\*(T|P):\*\*\s*(.*)$')
 
 def read_md(path: str) -> str:
@@ -589,8 +594,13 @@ def show_field(f: Field, index: int, data_collected):
         key = f.name + str(index)
         # track the logical field name once per page; prep_and_save_data relies on this
         st.session_state.data_inputs_keys.append(f.name)
-        value = st.session_state[key] if key in st.session_state else \
-            (data_collected[f.name] if data_collected else INPUT_FIELD_DEFAULT_VALUES[f.type])
+        default_val = (
+            data_collected.get(f.name, INPUT_FIELD_DEFAULT_VALUES[f.type])
+            if data_collected else INPUT_FIELD_DEFAULT_VALUES[f.type]
+        )
+        value = _ensure_key(key, default_val)
+        #value = st.session_state[key] if key in st.session_state else \
+        #    (data_collected[f.name] if data_collected else INPUT_FIELD_DEFAULT_VALUES[f.type])
         if not SHOW_HELP_ICON:
             f.title = f'**{f.title}**\n\n{f.help}' if f.help else f.title
 
@@ -601,7 +611,8 @@ def show_field(f: Field, index: int, data_collected):
             if f.following_mandatory_values and st.session_state[key] in f.following_mandatory_values:
                 st.session_state.following_mandatory = True
             if f.mandatory or st.session_state.following_mandatory:
-                if st.session_state[key] == INPUT_FIELD_DEFAULT_VALUES[f.type]:
+                if value == INPUT_FIELD_DEFAULT_VALUES[f.type]:
+                #if st.session_state[key] == INPUT_FIELD_DEFAULT_VALUES[f.type]:
                     st.session_state.valid = False
                     validation_error = True
                 elif f.following_mandatory_values and st.session_state[key] in f.following_mandatory_values: