image_text = image_text + "\n" + owner_comments TypeError: can only concatenate str (not "tuple") to str

when run session.follow_by_tags()
this error image_text = image_text + "\n" + owner_comments TypeError: can only concatenate str (not "tuple") to str
and not following

Reproduce the failure with session.follow_by_tags() and inspect the code that builds image_text from owner_comments. Confirm the behavior with a tag-following run; done means the TypeError is gone and the session follows the requested tags.

索引モデルが issue の本文から書いたものです。