Fix nasty edge-case bug with minhash sketch (and clean code at the same time by putting all sign change into new definition of static method `extracthash`)
Fix nasty edge-case bug with minhash sketch (and clean code at the
same time by putting all sign change into new definition of
static method `extracthash`)

lgautier/mashing-pumpkins,lgautier/mashing-pumpkins,lgautier/mashing-pumpkins