Error on layer replace

[giohappy]

When a layer is replaced GeoNode returns the following error:

Some error occurred while trying to access the uploaded schema: Please ensure the name is consistent with the file you are trying to replace.
Traceback (most recent call last):
  File "/usr/src/geonode/geonode/layers/utils.py", line 1131, in validate_input_source
    raise Exception(
Exception: Please ensure the name is consistent with the file you are trying to replace.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/geonode/geonode/layers/views.py", line 1338, in layer_replace
    saved_layer = file_upload(
  File "/usr/local/lib/python3.8/contextlib.py", line 75, in inner
    return func(*args, **kwds)
  File "/usr/src/geonode/geonode/layers/utils.py", line 462, in file_upload
    validate_input_source(layer, filename, files, gtype, action_type='replace')
  File "/usr/src/geonode/geonode/layers/utils.py", line 1164, in validate_input_source
    raise Exception(
Exception: Some error occurred while trying to access the uploaded schema: Please ensure the name is consistent with the file you are trying to replace.
Bad Request: /layers/geonode:Reg01012019_g_WGS847/replace

This log comes from master demo. It can be replicated on any layer.

[mattiagiupponi]

PR for fix the issue are opened,
master: #7395
backport: #7396
Friendly reminder that the name of the layer should match the name of the uploaded files