https://bugzilla.redhat.com/show_bug.cgi?id=1219288
--- Comment #12 from Julien Enselme jujens@jujens.eu ---
state 2.0.0b5 as release.
I don't think they were design to state anything else. If I look at the milestone on github: https://github.com/marshmallow-code/marshmallow/milestones I think this confirms that the b stands for beta.
However if this is blocker for you I can put the short git hash in Release number.
From what I understand from the guidelines, no matter what "b" means, we must
treat it as a pre-release. I am not doing it for the sake of arguing, I just try to do the thing right. I may, however, misunderstand the guidelines, in that case, I will be happy to approve this package if you prove me wrong.