Bugfix at insert-token (#58)
Bugfix at insert-token (#58)

Any call of INSERT-TOKEN where the NEW-TOKEN had ID 1 did not work,
as INSERT-AT did not modify the original SENTENCE-TOKENS.

By explicitly setting SENTENCE-TOKENS, this bug is fixed.

For IDs greater than 1 it worked because PUSH in INSERT-AT did the
necessary changes.
own-pt/cl-conllu