config is None when resuming session / AttributeError: 'NoneType' object has no attribute 'extcmd'

[Zygmunt Krynicki]

NOTE: this happens when resuming a session. It seems that the config object is just stored in start_session()

ERROR:checkbox.touch:run_test_activity(...) raised AttributeError("'NoneType' object has no attribute 'extcmd'",)
Traceback (most recent call last):
  File "/home/zyga/checkbox/checkbox-touch/py/checkbox_touch.py", line 173, in wrapper
    result = func(*args, **kwargs)
  File "/home/zyga/checkbox/checkbox-touch/py/checkbox_touch.py", line 665, in run_test_activity
    result = self.runner.run_job(job, job_state, self.config)
  File "/home/zyga/checkbox/plainbox/plainbox/impl/runner.py", line 434, in run_job
    return runner(job, job_state, config)
  File "/home/zyga/checkbox/plainbox/plainbox/impl/runner.py", line 460, in run_shell_job
    return self._just_run_command(job, job_state, config).seal()
  File "/home/zyga/checkbox/plainbox/plainbox/impl/runner.py", line 801, in _just_run_command
    job, job_state, config, ctrl)
  File "/home/zyga/checkbox/plainbox/plainbox/impl/runner.py", line 878, in _run_command
    delegate_cls = self._get_delegate_cls(config)
  File "/home/zyga/checkbox/plainbox/plainbox/impl/runner.py", line 981, in _get_delegate_cls
    and config.extcmd == "glibc"):
AttributeError: 'NoneType' object has no attribute 'extcmd'

[Zygmunt Krynicki (zyga)]

Setting to high as this breaks resume + rerun for all jobs that use commands.