Seiga manga: failure to collect tags

nndownload -n https://seiga.nicovideo.jp/comic/19126, using the latest version (8d3a091225b490fe44699670bfcdf09e31134360):

Logging in...
Logged in.
Downloading comic 19126...
1/100
Traceback (most recent call last):
  File "/home/***/opt/bin/nndownload", line 1663, in main
    process_url_mo(session, url_mo)
  File "/home/***/opt/bin/nndownload", line 1600, in process_url_mo
    download_manga(session, url_id)
  File "/home/***/opt/bin/nndownload", line 660, in download_manga
    download_manga_chapter(session, chapter_id)
  File "/home/***/opt/bin/nndownload", line 605, in download_manga_chapter
    template_params = collect_seiga_manga_parameters(session, document, template_params)
  File "/home/***/opt/bin/nndownload", line 585, in collect_seiga_manga_parameters
    for tag in tags_json["tag_list"]:
KeyError: 'tag_list'

A trustworthy print(tags_json) prints {'errors': ['タグ情報が取得できませんでした']}.

AlexAplin / nndownload

Seiga manga: failure to collect tags #81