Traceback (most recent call last):
  File "/gnu/store/0cr7zsmwd3agg1fa5l26qw9zkkbqbac8-itstool-2.0.6/bin/.itstool-real", line 1598, in <module>
    doc.merge_translations(translations, opts.lang, strict=opts.strict)
  File "/gnu/store/0cr7zsmwd3agg1fa5l26qw9zkkbqbac8-itstool-2.0.6/bin/.itstool-real", line 986, in merge_translations
    lcnode.setProp(attr, origlang)
  File "/gnu/store/2q6akqn1balhb0rc73cv0rjacxz1wz3k-python-libxml2-2.9.9-1/lib/python3.7/site-packages/libxml2.py", line 3588, in setProp
    if ret is None:raise treeError('xmlSetProp() failed')
libxml2.treeError: xmlSetProp() failed

guix 026a0ba
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 026a0ba90274fb32c84441e42e492887168acdc2