Andrew Gregory authored Jan 07, 2018 and Allan McRae committed Jan 10, 2018

If rehash ever failed with a full hash it would return the old hash
that is already full.  get_hash_position would then loop forever
because it would never find an empty bucket.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>