fix cleanup when a chunk is at max size
fix cleanup when a chunk is at max size

telehash/telehash-c,ukscone/telehash-c,telehash/telehash-c,ukscone/telehash-c,ukscone/telehash-c,telehash/telehash-c,ukscone/telehash-c,telehash/telehash-c