UNKNOWN CORBA system exception

With latest Lima, at least with Python 3 compiled code, exceptions in Lima calls are not raised properly:

Traceback (most recent call last):
  File "src/gevent/greenlet.py", line 716, in gevent._greenlet.Greenlet.run
  File "/users/blissadm/conda/miniconda/envs/bliss_dev/lib/python2.7/site-packages/tango/gevent_executor.py", line 81, in unwrap_error
    six.reraise(result.exception, result.error_string, result.tb)
  File "/users/blissadm/conda/miniconda/envs/bliss_dev/lib/python2.7/site-packages/tango/gevent_executor.py", line 70, in wrapper
    return func(*args, **kwargs)
  File "/users/blissadm/conda/miniconda/envs/bliss_dev/lib/python2.7/site-packages/tango/connection.py", line 104, in __Connection__command_inout
    r = Connection.command_inout_raw(self, name, *args, **kwds)
  File "/users/blissadm/conda/miniconda/envs/bliss_dev/lib/python2.7/site-packages/tango/connection.py", line 133, in __Connection__command_inout_raw
    return self.__command_inout(cmd_name, param)
CommunicationFailed: DevFailed[
DevError[
    desc = UNKNOWN CORBA system exception
  origin = Connection::command_inout()
  reason = API_CorbaException
severity = ERR]

DevError[
    desc = Failed to execute command_inout on device id31/limaccds/pilatus1, command readImage
  origin = Connection::command_inout()
  reason = API_CommunicationFailed
severity = ERR]
]

Instead of UNKNOWN CORBA system exception, there should a Lima exception.