Update app.py

app.py

@@ -41,6 +41,7 @@ for name, repo_name in name2repo:
                        Description=desc['leader']))
     name2num_milestones[name] = num_milestones
 
+copy_df = copy.deepcopy(df)
 colors = {'not started': 'rgb(217, 217, 217)',
           'in progress': 'rgb(147, 196, 125)',
           'high priority - on track': 'rgb(234, 153, 153)',
@@ -52,12 +53,12 @@ if len(all_status) == 0:
 
 for key in colors.keys():
     if key not in all_status:
-        df.append(dict(Task=task_name, 
+        copy_df.append(dict(Task=task_name, 
                    Start='2023-04-02', 
                    Finish='2023-04-02', 
                    Resource=key))
 
-fig = ff.create_gantt(df, colors=colors, 
+fig = ff.create_gantt(copy_df, colors=colors, 
                       index_col='Resource', 
                       show_colorbar=True, 
                       show_hover_fill=True,