Foreign key already exists for license => licenses.key

[kurtmckee]

I've cloned this repository and run these commands (I'm assuming that the exact repository doesn't matter):

$ github-to-sqlite issues database.sqlite3 user/repo
$ github-to-sqlite issue-comments database.sqlite3 user/repo
Traceback (most recent call last):
  File ".venv/bin/github-to-sqlite", line 10, in <module>
    sys.exit(cli())
             ~~~^^
  File ".venv/lib/python3.14/site-packages/click/core.py", line 1569, in __call__
    return self.main(*args, **kwargs)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.14/site-packages/click/core.py", line 1490, in main
    rv = self.invoke(ctx)
  File ".venv/lib/python3.14/site-packages/click/core.py", line 1970, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
  File ".venv/lib/python3.14/site-packages/click/core.py", line 1353, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.14/site-packages/click/core.py", line 907, in invoke
    return callback(*args, **kwargs)
  File "github_to_sqlite/cli.py", line 180, in issue_comments
    utils.ensure_db_shape(db)
    ~~~~~~~~~~~~~~~~~~~~~^^^^
  File "github_to_sqlite/utils.py", line 714, in ensure_db_shape
    ensure_foreign_keys(db)
    ~~~~~~~~~~~~~~~~~~~^^^^
  File "github_to_sqlite/utils.py", line 708, in ensure_foreign_keys
    db[table].add_foreign_key(column, table2, column2)
    ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.14/site-packages/sqlite_utils/db.py", line 3330, in add_foreign_key
    raise AlterError(
    ...<3 lines>...
    )
sqlite_utils.db.AlterError: Foreign key already exists for license => licenses.key

I think that I've been able to resolve this issue by wrapping the last call in a try/except block, and can contribute a PR to address this if that seems like the right way to address this.