ValueError: Unable to create group (name already exists)` when saving MobilenetV3 model to .h5 about keras-applications HOT 2 OPEN

input_1
Conv_pad
Conv
Conv/BatchNorm
activation
expanded_conv/depthwise/pad
expanded_conv/depthwise
Traceback (most recent call last):
  File "concatenate_networks.py", line 97, in <module>
    main()
  File "concatenate_networks.py", line 58, in main
    mobilenet_model.save(cmd_args.out_saved_model)
  File "/home/robert/tf2/lib/python3.8/site-packages/tensorflow_core/python/keras/engine/network.py", line 1007, in save
    save.save_model(self, filepath, overwrite, include_optimizer, save_format,
  File "/home/robert/tf2/lib/python3.8/site-packages/tensorflow_core/python/keras/saving/save.py", line 111, in save_model
    hdf5_format.save_model_to_hdf5(
  File "/home/robert/tf2/lib/python3.8/site-packages/tensorflow_core/python/keras/saving/hdf5_format.py", line 109, in save_model_to_hdf5
    save_weights_to_hdf5_group(model_weights_group, model_layers)
  File "/home/robert/tf2/lib/python3.8/site-packages/tensorflow_core/python/keras/saving/hdf5_format.py", line 626, in save_weights_to_hdf5_group
    g = f.create_group(layer.name)
  File "/home/robert/tf2/lib/python3.8/site-packages/h5py/_hl/group.py", line 68, in create_group
    gid = h5g.create(self.id, name, lcpl=lcpl, gcpl=gcpl)
  File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "h5py/h5g.pyx", line 161, in h5py.h5g.create
ValueError: Unable to create group (name already exists)