use file modification time instead of current time for #9760

modules/ui_tempdir.py

@@ -35,7 +35,8 @@ def check_tmp_file(gradio, filename):
 def save_pil_to_file(pil_image, dir=None):
     already_saved_as = getattr(pil_image, 'already_saved_as', None)
     if already_saved_as and os.path.isfile(already_saved_as):
-        already_saved_as += f'?{int(time())}'
+        already_saved_as += f'?{os.path.getmtime(already_saved_as)}'
+
         register_tmp_file(shared.demo, already_saved_as)
 
         file_obj = Savedfile(already_saved_as)