clearspring/stream-lib — pull request #52 by jkff (2013-10-20 19:01:59+00:00)
Title: Fixes a rather grave bug in QDigest.compressFully.

Strange that it was unnoticed before.
The bug was that compression at the root node must not have been applied, because it breaks the size invariant.
Thanks to Yağız Kaymak for reporting.