I am OK with the z-stream fix.
Upstream commit addressing the problem:
It may look a bit over-engineered, but it's done this way to lower the possibility of race condition during Tuned startup / modules loading.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.