Fill the buffer as much as we can the first time
Fill the buffer as much as we can the first time

No need to keep room for previous records, because there are
no previous records the very first time the buffer is filled.

Tatoeba/tatoeba2,Tatoeba/tatoeba2,Tatoeba/tatoeba2,Tatoeba/tatoeba2,Tatoeba/tatoeba2