Failing to update selection leads to read error

When SelectionMixin silently fails to search_read, another error is raised when get_inactive_selection is called for the value None, such:

Traceback (most recent call last):
  File "/tryton/tryton/trytond/trytond/protocols/dispatcher.py", line 195, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tryton/tryton/trytond/trytond/ir/lang.py", line 116, in read
    res = super(Lang, cls).read(ids, fields_names)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tryton/tryton/trytond/trytond/model/modelsql.py", line 940, in read
    getter_results = field.get(
                     ^^^^^^^^^^
  File "/tryton/tryton/trytond/trytond/model/fields/function.py", line 26, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tryton/tryton/trytond/trytond/model/fields/function.py", line 118, in get
    records = Model.browse(ids)
              ^^^^^^^^^^^^^^^^^
  File "/tryton/tryton/trytond/trytond/model/modelstorage.py", line 672, in browse
    ids = list(map(int, ids))
          ^^^^^^^^^^^^^^^^^^^
TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'