[code_review] IndexError: list index out of range

[benjaminmah]

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/User/Documents/bugbug/scripts/inline_comments_data_collection.py", line 153, in <module>
    download_inline_comments()
  File "/User/Documents/bugbug/scripts/inline_comments_data_collection.py", line 59, in download_inline_comments
    for patch_id, comments in review_data.get_all_inline_comments(lambda c: True):
  File "/User/Documents/bugbug/bugbug/tools/code_review.py", line 339, in get_all_inline_comments
    transaction_comment = transaction["comments"][0]
                          ~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range