A seed recorded as a 5000-digit string reached int(), which raises
ValueError past Python's integer string limit, and the listing answered
500. A digit-string seed now has at most 20 digits (2**64 fits), and the
conversion falls back to no seed on ValueError.
Each card's parse is also guarded in the page builder: an unexpected
error in one file's records logs a warning and gives that card no seed
and no first-line title, and the rest of the page still lists.
Vito Sansevero
46e0f6cf79