Update state.py

state.py

@@ -215,9 +215,16 @@ def addGlobalRename():
     new_name = st.session_state.globalRenameInput.strip()
     if not new_name:
         return
+    # Don't create a duplicate entry — if the name already exists just clear the input
+    for entry in st.session_state.globalRenames:
+        if entry["name"] == new_name:
+            st.toast(f"'{new_name}' already exists in the rename list")
+            st.session_state.globalRenameInput = ""
+            return
     st.toast(f"Adding rename '{new_name}'")
     st.session_state.globalRenames.append({"name": new_name, "speakers": []})
-    st.session_state[_global_rename_key(len(st.session_state.globalRenames) - 1)] = []
+    # Don't pre-seed the widget key here — the render loop will seed it from
+    # entry["speakers"] on the next pass, which avoids any widget-mutation error.
     st.session_state.globalRenameInput = ""
 
 
@@ -288,14 +295,17 @@ def updateMultiSelect():
     currAnnotation, _ = result
     speakerNames  = list(currAnnotation.labels())
     saved_renames = st.session_state.speakerRenames.get(fileName, {})
-    raw_to_display = {}
     for sp in speakerNames:
         saved = saved_renames.get(sp, "")
         st.session_state[f"rename_{fileName}_{sp}"] = saved
-        raw_to_display[sp] = saved if saved else sp
-    for i, category in enumerate(st.session_state.categories):
-        # categorySelect[i] holds cross-file tokens; widget key just keeps them as-is
+    # Pop category widget keys so they re-seed from categorySelect data
+    for category in st.session_state.categories:
         st.session_state.pop(f"multiselect_{category}", None)
+    # Pop globalRenames widget keys so they re-seed from entry["speakers"] data.
+    # This prevents a file-switch from leaving stale selections in the sidebar
+    # rename multiselects.
+    for i in range(len(st.session_state.globalRenames)):
+        st.session_state.pop(_global_rename_key(i), None)
 
 
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