bug#41257: ibus-setup failed

[Wensheng Xie]

wxie@guix ~$ ibus-daemon --xim --replace --daemonize
wxie@guix ~$ ibus-setup
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:177:
 Warning: cannot register existing type 'GdkPixbuf'
  g_type = info.get_g_type()
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:177:
 Warning: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE 
(instance_type)' failed
  g_type = info.get_g_type()
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:177:
 Warning: g_once_init_leave: assertion 'result != 0' failed
  g_type = info.get_g_type()
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:211:
 Warning: g_type_get_qdata: assertion 'node != NULL' failed
  type_ = g_type.pytype
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:225:
 Warning: g_type_get_qdata: assertion 'node != NULL' failed
  g_type.pytype = wrapper
/gnu/store/y4qwsw06ynvw3fjk2lrspp89mfmjzj5i-python-pygobject-3.28.3/lib/python3.7/site-packages/gi/module.py:225:
 Warning: g_type_set_qdata: assertion 'node != NULL' failed
  g_type.pytype = wrapper

cannot setup extra input method, e.g., ibus-rime